392578052 has 12 divisors (see below), whose sum is σ = 687615516. Its totient is φ = 196116480.

The previous prime is 392578033. The next prime is 392578111. The reversal of 392578052 is 250875293.

It can be written as a sum of positive squares in 2 ways, for example, as 339812356 + 52765696 = 18434^2 + 7264^2 .

It is a super-2 number, since 2×392578052² = 308235053824229408, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37949 + ... + 47172.

It is an arithmetic number, because the mean of its divisors is an integer number (57301293).

Almost surely, 2^392578052 is an apocalyptic number.

It is an amenable number.

392578052 is a deficient number, since it is larger than the sum of its proper divisors (295037464).

392578052 is a wasteful number, since it uses less digits than its factorization.

392578052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86278 (or 86276 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 392578052 is about 19813.5825130136. The cubic root of 392578052 is about 732.2207049458.

The spelling of 392578052 in words is "three hundred ninety-two million, five hundred seventy-eight thousand, fifty-two".