499431168 has 216 divisors, whose sum is σ = 1566897696. Its totient is φ = 152371200.

The previous prime is 499431157. The next prime is 499431187. The reversal of 499431168 is 861134994.

499431168 is a `hidden beast` number, since 499 + 43 + 116 + 8 = 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.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1605733 + ... + 1606043.

It is an arithmetic number, because the mean of its divisors is an integer number (7254156).

Almost surely, 2^499431168 is an apocalyptic number.

499431168 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499431168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (783448848).

499431168 is an abundant number, since it is smaller than the sum of its proper divisors (1067466528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499431168 is a wasteful number, since it uses less digits than its factorization.

499431168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 374 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 499431168 is about 22347.9566851200. The cubic root of 499431168 is about 793.3994235990.

The spelling of 499431168 in words is "four hundred ninety-nine million, four hundred thirty-one thousand, one hundred sixty-eight".