390015513 has 32 divisors (see below), whose sum is σ = 616291200. Its totient is φ = 242915328.

The previous prime is 390015511. The next prime is 390015529. The reversal of 390015513 is 315510093.

It is not a de Polignac number, because 390015513 - 2¹ = 390015511 is a prime.

It is a super-2 number, since 2×390015513² = 304224200761306338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (390015511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60745 + ... + 66857.

It is an arithmetic number, because the mean of its divisors is an integer number (19259100).

Almost surely, 2^390015513 is an apocalyptic number.

It is an amenable number.

390015513 is a deficient number, since it is larger than the sum of its proper divisors (226275687).

390015513 is a wasteful number, since it uses less digits than its factorization.

390015513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6278 (or 6272 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 390015513 is about 19748.8104198709. The cubic root of 390015513 is about 730.6240444749.

The spelling of 390015513 in words is "three hundred ninety million, fifteen thousand, five hundred thirteen".