I believe it has also done 500k digital downloads just in the U.S. but can't find the BB article on mobile.
I don't think it's too far-fetched when the song went #1 in every single country except for four of them. Granted single sales were much lower, but still.
Digital Sales
Oops: 343K
Stronger : 189K
I'm A Slave 4 U: 371K
Me Against The Music: 247K
Do Something: 363K
My Prerogative: 364K
Someday: 60K
Shattered Glass: 160K
This is from August 2010, so I'm every sure that Oops is 500k+ in the US by now (along with probably a few other tracks).
This is from the last update in mid 2013.
Oops!...I Did It Again - 526,953(d) + 57,000(p) = 580,953
Stronger - 270,000(d) + 415,000(p) = 685,000
I'm A Slave 4 U - 545,816 d) + 32,000(p) = 577,816
Me Against the Music - 365,000(d) + 60,000(p) = 425,000
My Prerogative - 430,106
Do Somethin' - 363,000
This is from the last update in mid 2013.
Oops!...I Did It Again - 526,953(d) + 57,000(p) = 580,953
Stronger - 270,000(d) + 415,000(p) = 685,000
I'm A Slave 4 U - 545,816 d) + 32,000(p) = 577,816
Me Against the Music - 365,000(d) + 60,000(p) = 425,000
My Prerogative - 430,106
Do Somethin' - 363,000
I've always wanted to get my hands on one of them, but I've never felt the cost was justified (they go for about $70+ nowadays). Her vinyls are so gorgeous, I managed to get a I'm a Slave 4 U - The Remixes 12" at a steal, so worth it.
I had no idea.