390441968 has 40 divisors (see below), whose sum is σ = 878738400. Its totient is φ = 164586240.

The previous prime is 390441959. The next prime is 390441991. The reversal of 390441968 is 869144093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21743 + ... + 35406.

It is an arithmetic number, because the mean of its divisors is an integer number (21968460).

Almost surely, 2^390441968 is an apocalyptic number.

It is an amenable number.

390441968 is an abundant number, since it is smaller than the sum of its proper divisors (488296432).

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

390441968 is a wasteful number, since it uses less digits than its factorization.

390441968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57225 (or 57219 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 390441968 is about 19759.6044494823. The cubic root of 390441968 is about 730.8902431023.

The spelling of 390441968 in words is "three hundred ninety million, four hundred forty-one thousand, nine hundred sixty-eight".