390942512 has 20 divisors (see below), whose sum is σ = 759087576. Its totient is φ = 195048960.

The previous prime is 390942511. The next prime is 390942527. The reversal of 390942512 is 215249093.

It is not an unprimeable number, because it can be changed into a prime (390942511) 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, 18689 + ... + 33632.

Almost surely, 2^390942512 is an apocalyptic number.

It is an amenable number.

390942512 is a deficient number, since it is larger than the sum of its proper divisors (368145064).

390942512 is a wasteful number, since it uses less digits than its factorization.

390942512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52796 (or 52790 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 390942512 is about 19772.2662332875. The cubic root of 390942512 is about 731.2024418677.

The spelling of 390942512 in words is "three hundred ninety million, nine hundred forty-two thousand, five hundred twelve".