Nope...that's true of many numbers. Like 854917632 for example. Or 549176320. It must be something to do with primes or summat. Dunno I'm crap at maths.
Good Job! That riddle messed with my head for the longest time. Yes, the number has all the numbers in it from 0-9 and they are in alphabetical order...if the first letter is the same then the next letter is in order. 8 = Eight 5 = Five 4 = Four 9 = Nine 1 = One 7 = Seven 6 = Six 3 = Three 2 = Two 0 = Zero