390662946 has 32 divisors (see below), whose sum is σ = 891607680. Its totient is φ = 126700848.

The previous prime is 390662903. The next prime is 390662953. The reversal of 390662946 is 649266093.

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, 95766 + ... + 99761.

It is an arithmetic number, because the mean of its divisors is an integer number (27862740).

Almost surely, 2^390662946 is an apocalyptic number.

390662946 is an abundant number, since it is smaller than the sum of its proper divisors (500944734).

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

390662946 is a wasteful number, since it uses less digits than its factorization.

390662946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195575 (or 195569 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 390662946 is about 19765.1953190450. The cubic root of 390662946 is about 731.0281041392.

The spelling of 390662946 in words is "three hundred ninety million, six hundred sixty-two thousand, nine hundred forty-six".