392930 has 8 divisors (see below), whose sum is σ = 707292. Its totient is φ = 157168.

The previous prime is 392929. The next prime is 392957. The reversal of 392930 is 39293.

It can be written as a sum of positive squares in 2 ways, for example, as 375769 + 17161 = 613^2 + 131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 392930.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 392930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19637 + ... + 19656.

2³⁹²⁹³⁰ is an apocalyptic number.

392930 is a deficient number, since it is larger than the sum of its proper divisors (314362).

392930 is a wasteful number, since it uses less digits than its factorization.

392930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39300.

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

The square root of 392930 is about 626.8412877276. The cubic root of 392930 is about 73.2439452648.

The spelling of 392930 in words is "three hundred ninety-two thousand, nine hundred thirty".