Multipling 999939200 by its sum of digits (50), we get a square (49996960000 = 2236002).
999939200 divided by its sum of digits (50) gives a square (19998784 = 44722).
999939200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an ABA number since it can be written as A⋅BA, here for A=2, B=22360.
Almost surely, 2999939200 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 999939200
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
999939200 is a wasteful number, since it uses less digits than its factorization.
999939200 is an odious number, because the sum of its binary digits is odd.
The square root of 999939200 is about 31621.8152546624. The cubic root of 999939200 is about 999.9797329226.
The spelling of 999939200 in words is "nine hundred ninety-nine million, nine hundred thirty-nine thousand, two hundred".