499131520 has 64 divisors (see below), whose sum is σ = 1256068800. Its totient is φ = 189139968.

The previous prime is 499131497. The next prime is 499131541. The reversal of 499131520 is 25131994.

499131520 = 2245² + 2246² + ... + 2339².

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8364 + ... + 32683.

It is an arithmetic number, because the mean of its divisors is an integer number (19626075).

Almost surely, 2^499131520 is an apocalyptic number.

499131520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499131520 is an abundant number, since it is smaller than the sum of its proper divisors (756937280).

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

499131520 is a wasteful number, since it uses less digits than its factorization.

499131520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41085 (or 41073 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 499131520 is about 22341.2515316399. The cubic root of 499131520 is about 793.2407176365.

The spelling of 499131520 in words is "four hundred ninety-nine million, one hundred thirty-one thousand, five hundred twenty".