392642634 has 16 divisors (see below), whose sum is σ = 792491040. Its totient is φ = 129679920.

The previous prime is 392642623. The next prime is 392642647. The reversal of 392642634 is 436246293.

It is a junction number, because it is equal to n+sod(n) for n = 392642592 and 392642601.

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 7 ways as a sum of consecutive naturals, for example, 299532 + ... + 300839.

It is an arithmetic number, because the mean of its divisors is an integer number (49530690).

Almost surely, 2^392642634 is an apocalyptic number.

392642634 is an abundant number, since it is smaller than the sum of its proper divisors (399848406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

392642634 is a wasteful number, since it uses less digits than its factorization.

392642634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600485.

The product of its digits is 186624, while the sum is 39.

The square root of 392642634 is about 19815.2121866005. The cubic root of 392642634 is about 732.2608546557.

The spelling of 392642634 in words is "three hundred ninety-two million, six hundred forty-two thousand, six hundred thirty-four".