390348057 has 12 divisors (see below), whose sum is σ = 572080880. Its totient is φ = 236574360.

The previous prime is 390348053. The next prime is 390348073. The reversal of 390348057 is 750843093.

It is not a de Polignac number, because 390348057 - 2² = 390348053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390348053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537307 + ... + 538032.

Almost surely, 2^390348057 is an apocalyptic number.

It is an amenable number.

390348057 is a deficient number, since it is larger than the sum of its proper divisors (181732823).

390348057 is a wasteful number, since it uses less digits than its factorization.

390348057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075364 (or 1075353 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 390348057 is about 19757.2279685183. The cubic root of 390348057 is about 730.8316393122.

The spelling of 390348057 in words is "three hundred ninety million, three hundred forty-eight thousand, fifty-seven".