499128920 has 16 divisors (see below), whose sum is σ = 1123040160. Its totient is φ = 199651552.

The previous prime is 499128919. The next prime is 499128953. The reversal of 499128920 is 29821994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6239072 + ... + 6239151.

It is an arithmetic number, because the mean of its divisors is an integer number (70190010).

Almost surely, 2^499128920 is an apocalyptic number.

499128920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499128920 is an abundant number, since it is smaller than the sum of its proper divisors (623911240).

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

499128920 is a wasteful number, since it uses less digits than its factorization.

499128920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12478234 (or 12478230 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 499128920 is about 22341.1933432393. The cubic root of 499128920 is about 793.2393402911.

The spelling of 499128920 in words is "four hundred ninety-nine million, one hundred twenty-eight thousand, nine hundred twenty".