390344 has 16 divisors (see below), whose sum is σ = 745200. Its totient is φ = 191632.

The previous prime is 390343. The next prime is 390347. The reversal of 390344 is 443093.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 390344.

It is not an unprimeable number, because it can be changed into a prime (390343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59 + ... + 885.

It is an arithmetic number, because the mean of its divisors is an integer number (46575).

2³⁹⁰³⁴⁴ is an apocalyptic number.

It is an amenable number.

390344 is a deficient number, since it is larger than the sum of its proper divisors (354856).

390344 is a wasteful number, since it uses less digits than its factorization.

390344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 390344 is about 624.7751595574. The cubic root of 390344 is about 73.0829107389.

The spelling of 390344 in words is "three hundred ninety thousand, three hundred forty-four".