390932 has 12 divisors (see below), whose sum is σ = 724500. Its totient is φ = 183936.

The previous prime is 390893. The next prime is 390953. The reversal of 390932 is 239093.

It can be written as a sum of positive squares in 2 ways, for example, as 126736 + 264196 = 356^2 + 514^2 .

It is a congruent number.

It is an unprimeable number.

390932 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 2807 + ... + 2942.

It is an arithmetic number, because the mean of its divisors is an integer number (60375).

2³⁹⁰⁹³² is an apocalyptic number.

It is an amenable number.

390932 is a deficient number, since it is larger than the sum of its proper divisors (333568).

390932 is a wasteful number, since it uses less digits than its factorization.

390932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770 (or 5768 counting only the distinct ones).

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

The square root of 390932 is about 625.2455517635. The cubic root of 390932 is about 73.1195888075.

The spelling of 390932 in words is "three hundred ninety thousand, nine hundred thirty-two".