392799428 has 48 divisors (see below), whose sum is σ = 822017280. Its totient is φ = 160883712.

The previous prime is 392799401. The next prime is 392799457. The reversal of 392799428 is 824997293.

It is a self number, because there is not a number n which added to its sum of digits gives 392799428.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340100 + ... + 341252.

It is an arithmetic number, because the mean of its divisors is an integer number (17125360).

Almost surely, 2^392799428 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 392799428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411008640).

392799428 is an abundant number, since it is smaller than the sum of its proper divisors (429217852).

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

392799428 is a wasteful number, since it uses less digits than its factorization.

392799428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233 (or 1185 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The square root of 392799428 is about 19819.1681964708. The cubic root of 392799428 is about 732.3583129371.

The spelling of 392799428 in words is "three hundred ninety-two million, seven hundred ninety-nine thousand, four hundred twenty-eight".