392742339 has 16 divisors (see below), whose sum is σ = 580629504. Its totient is φ = 234122400.

The previous prime is 392742299. The next prime is 392742353. The reversal of 392742339 is 933247293.

It is a happy number.

It is not a de Polignac number, because 392742339 - 2⁹ = 392741827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 392742339.

It is not an unprimeable number, because it can be changed into a prime (392742359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95539 + ... + 99564.

It is an arithmetic number, because the mean of its divisors is an integer number (36289344).

Almost surely, 2^392742339 is an apocalyptic number.

392742339 is a deficient number, since it is larger than the sum of its proper divisors (187887165).

392742339 is a wasteful number, since it uses less digits than its factorization.

392742339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195178.

The product of its digits is 244944, while the sum is 42.

The square root of 392742339 is about 19817.7278970118. The cubic root of 392742339 is about 732.3228311904.

The spelling of 392742339 in words is "three hundred ninety-two million, seven hundred forty-two thousand, three hundred thirty-nine".