390121124 has 12 divisors (see below), whose sum is σ = 712395264. Its totient is φ = 186579624.

The previous prime is 390121111. The next prime is 390121133. The reversal of 390121124 is 421121093.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 390121124.

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, 2120132 + ... + 2120315.

It is an arithmetic number, because the mean of its divisors is an integer number (59366272).

Almost surely, 2^390121124 is an apocalyptic number.

It is an amenable number.

390121124 is a deficient number, since it is larger than the sum of its proper divisors (322274140).

390121124 is a wasteful number, since it uses less digits than its factorization.

390121124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240474 (or 4240472 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 390121124 is about 19751.4840961382. The cubic root of 390121124 is about 730.6899862726.

The spelling of 390121124 in words is "three hundred ninety million, one hundred twenty-one thousand, one hundred twenty-four".