I'm surprised no one has mentioned The Number 23 yet...
Historically speaking, there is evidence to support that it's actually 616, but c'mon, how scary is that ("333: I'm only half evil")?
-Oh, yeah, numbers. Well, I am under the strong assumption that 7:42 and 7:43 are times of some significance to me because I spontaneously look at the clock when it's that time almost every day (7+4+2=13). Other times, it's 9:11.
-Except for me (I think), 24 is a big deal with my dad's side of the family. Apparently, he and quite a few other relatives were all born on the 24th or some other permutation of those numbers. Also, just about every time you see a watch in an ad, it's at 10:10, and that's alledgedly when my grandpa was born.
And we musn't forget the ultimate number... 42!