392878412 has 12 divisors (see below), whose sum is σ = 687846600. Its totient is φ = 196350816.

The previous prime is 392878403. The next prime is 392878439. The reversal of 392878412 is 214878293.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11537 + ... + 30312.

It is an arithmetic number, because the mean of its divisors is an integer number (57320550).

Almost surely, 2^392878412 is an apocalyptic number.

It is an amenable number.

392878412 is a deficient number, since it is larger than the sum of its proper divisors (294968188).

392878412 is a wasteful number, since it uses less digits than its factorization.

392878412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44200 (or 44198 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 392878412 is about 19821.1607127332. The cubic root of 392878412 is about 732.4073971161.

The spelling of 392878412 in words is "three hundred ninety-two million, eight hundred seventy-eight thousand, four hundred twelve".