390475016 has 8 divisors (see below), whose sum is σ = 732140670. Its totient is φ = 195237504.

The previous prime is 390474991. The next prime is 390475031. The reversal of 390475016 is 610574093.

It can be written as a sum of positive squares in only one way, i.e., 351412516 + 39062500 = 18746^2 + 6250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24404681 + ... + 24404696.

Almost surely, 2^390475016 is an apocalyptic number.

It is an amenable number.

390475016 is a deficient number, since it is larger than the sum of its proper divisors (341665654).

390475016 is a wasteful number, since it uses less digits than its factorization.

390475016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48809383 (or 48809379 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 390475016 is about 19760.4406833451. The cubic root of 390475016 is about 730.9108639895.

The spelling of 390475016 in words is "three hundred ninety million, four hundred seventy-five thousand, sixteen".