396392 has 8 divisors (see below), whose sum is σ = 743250. Its totient is φ = 198192.

The previous prime is 396379. The next prime is 396413. The reversal of 396392 is 293693.

It can be written as a sum of positive squares in only one way, i.e., 276676 + 119716 = 526^2 + 346^2 .

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

It is an unprimeable number.

396392 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24767 + ... + 24782.

2³⁹⁶³⁹² is an apocalyptic number.

It is an amenable number.

396392 is a deficient number, since it is larger than the sum of its proper divisors (346858).

396392 is a wasteful number, since it uses less digits than its factorization.

396392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49555 (or 49551 counting only the distinct ones).

The product of its digits is 8748, while the sum is 32.

The square root of 396392 is about 629.5966963065. The cubic root of 396392 is about 73.4584274445.

The spelling of 396392 in words is "three hundred ninety-six thousand, three hundred ninety-two".