390416392 has 16 divisors (see below), whose sum is σ = 735258960. Its totient is φ = 194347344.

The previous prime is 390416371. The next prime is 390416423. The reversal of 390416392 is 293614093.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105678 + ... + 109309.

It is an arithmetic number, because the mean of its divisors is an integer number (45953685).

Almost surely, 2^390416392 is an apocalyptic number.

It is an amenable number.

390416392 is a deficient number, since it is larger than the sum of its proper divisors (344842568).

390416392 is a wasteful number, since it uses less digits than its factorization.

390416392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215220 (or 215216 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 390416392 is about 19758.9572599366. The cubic root of 390416392 is about 730.8742837037.

The spelling of 390416392 in words is "three hundred ninety million, four hundred sixteen thousand, three hundred ninety-two".