390425656 has 32 divisors (see below), whose sum is σ = 768499200. Its totient is φ = 185706720.

The previous prime is 390425653. The next prime is 390425669. The reversal of 390425656 is 656524093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390425653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291 + ... + 27973.

It is an arithmetic number, because the mean of its divisors is an integer number (24015600).

Almost surely, 2^390425656 is an apocalyptic number.

It is an amenable number.

390425656 is a deficient number, since it is larger than the sum of its proper divisors (378073544).

390425656 is a wasteful number, since it uses less digits than its factorization.

390425656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26779 (or 26775 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 390425656 is about 19759.1916838721. The cubic root of 390425656 is about 730.8800645110.

The spelling of 390425656 in words is "three hundred ninety million, four hundred twenty-five thousand, six hundred fifty-six".