499031556 has 12 divisors (see below), whose sum is σ = 1164406992. Its totient is φ = 166343848.

The previous prime is 499031551. The next prime is 499031557. The reversal of 499031556 is 655130994.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×499031556² = 498064987767562272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499031551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20792970 + ... + 20792993.

It is an arithmetic number, because the mean of its divisors is an integer number (97033916).

Almost surely, 2^499031556 is an apocalyptic number.

It is an amenable number.

499031556 is an abundant number, since it is smaller than the sum of its proper divisors (665375436).

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

499031556 is a wasteful number, since it uses less digits than its factorization.

499031556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41585970 (or 41585968 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 499031556 is about 22339.0142128072. The cubic root of 499031556 is about 793.1877584422.

The spelling of 499031556 in words is "four hundred ninety-nine million, thirty-one thousand, five hundred fifty-six".