390607056 has 80 divisors (see below), whose sum is σ = 1281366400. Its totient is φ = 111601152.

The previous prime is 390606991. The next prime is 390607117. The reversal of 390607056 is 650706093.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 390607056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61561 + ... + 67608.

It is an arithmetic number, because the mean of its divisors is an integer number (16017080).

Almost surely, 2^390607056 is an apocalyptic number.

390607056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

390607056 is an abundant number, since it is smaller than the sum of its proper divisors (890759344).

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

390607056 is a wasteful number, since it uses less digits than its factorization.

390607056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129193 (or 129181 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 390607056 is about 19763.7814195563. The cubic root of 390607056 is about 730.9932410860.

The spelling of 390607056 in words is "three hundred ninety million, six hundred seven thousand, fifty-six".