513031338 has 48 divisors (see below), whose sum is σ = 1214942976. Its totient is φ = 155756160.

The previous prime is 513031231. The next prime is 513031339. The reversal of 513031338 is 833130315.

It is not an unprimeable number, because it can be changed into a prime (513031339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17556 + ... + 36527.

It is an arithmetic number, because the mean of its divisors is an integer number (25311312).

Almost surely, 2^513031338 is an apocalyptic number.

513031338 is an abundant number, since it is smaller than the sum of its proper divisors (701911638).

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

513031338 is a wasteful number, since it uses less digits than its factorization.

513031338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54139 (or 54136 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 513031338 is about 22650.1950984975. The cubic root of 513031338 is about 800.5367949418.

The spelling of 513031338 in words is "five hundred thirteen million, thirty-one thousand, three hundred thirty-eight".