499668696 is a `hidden beast` number, since 499 + 66 + 86 + 9 + 6 = 666.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2499668696 is an apocalyptic number.
499668696 is the 12906-th octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 499668696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696960000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
499668696 is a wasteful number, since it uses less digits than its factorization.
499668696 is an odious number, because the sum of its binary digits is odd.
The square root of 499668696 is about 22353.2703647587. The cubic root of 499668696 is about 793.5251831445.
The spelling of 499668696 in words is "four hundred ninety-nine million, six hundred sixty-eight thousand, six hundred ninety-six".