392428165 has 8 divisors (see below), whose sum is σ = 479799288. Its totient is φ = 308018880.

The previous prime is 392428159. The next prime is 392428177. The reversal of 392428165 is 561824293.

It can be written as a sum of positive squares in 4 ways, for example, as 137898049 + 254530116 = 11743^2 + 15954^2 .

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

It is not a de Polignac number, because 392428165 - 2⁷ = 392428037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740166 + ... + 740695.

It is an arithmetic number, because the mean of its divisors is an integer number (59974911).

Almost surely, 2^392428165 is an apocalyptic number.

It is an amenable number.

392428165 is a deficient number, since it is larger than the sum of its proper divisors (87371123).

392428165 is a wasteful number, since it uses less digits than its factorization.

392428165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480919.

The product of its digits is 103680, while the sum is 40.

The square root of 392428165 is about 19809.7997213500. The cubic root of 392428165 is about 732.1275053601.

The spelling of 392428165 in words is "three hundred ninety-two million, four hundred twenty-eight thousand, one hundred sixty-five".