390392 has 8 divisors (see below), whose sum is σ = 732000. Its totient is φ = 195192.

The previous prime is 390391. The next prime is 390407. The reversal of 390392 is 293093.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24392 + ... + 24407.

It is an arithmetic number, because the mean of its divisors is an integer number (91500).

2³⁹⁰³⁹² is an apocalyptic number.

It is an amenable number.

390392 is a deficient number, since it is larger than the sum of its proper divisors (341608).

390392 is a wasteful number, since it uses less digits than its factorization.

390392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48805 (or 48801 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 390392 is about 624.8135721957. The cubic root of 390392 is about 73.0859062470.

The spelling of 390392 in words is "three hundred ninety thousand, three hundred ninety-two".