392704928 has 96 divisors (see below), whose sum is σ = 984711168. Its totient is φ = 149702400.

The previous prime is 392704909. The next prime is 392704933. The reversal of 392704928 is 829407293.

It is a Harshad number since it is a multiple of its sum of digits (44).

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 15 ways as a sum of consecutive naturals, for example, 114113 + ... + 117503.

It is an arithmetic number, because the mean of its divisors is an integer number (10257408).

Almost surely, 2^392704928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 392704928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492355584).

392704928 is an abundant number, since it is smaller than the sum of its proper divisors (592006240).

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

392704928 is a wasteful number, since it uses less digits than its factorization.

392704928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466 (or 3458 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 392704928 is about 19816.7839974099. The cubic root of 392704928 is about 732.2995777774.

Adding to 392704928 its reverse (829407293), we get a palindrome (1222112221).

The spelling of 392704928 in words is "three hundred ninety-two million, seven hundred four thousand, nine hundred twenty-eight".