390672530 has 32 divisors (see below), whose sum is σ = 717061248. Its totient is φ = 153216000.

The previous prime is 390672521. The next prime is 390672577. The reversal of 390672530 is 35276093.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135605 + ... + 138455.

It is an arithmetic number, because the mean of its divisors is an integer number (22408164).

Almost surely, 2^390672530 is an apocalyptic number.

390672530 is a deficient number, since it is larger than the sum of its proper divisors (326388718).

390672530 is a wasteful number, since it uses less digits than its factorization.

390672530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 390672530 is about 19765.4377639353. The cubic root of 390672530 is about 731.0340821109.

The spelling of 390672530 in words is "three hundred ninety million, six hundred seventy-two thousand, five hundred thirty".