392644697406 has 64 divisors (see below), whose sum is σ = 876581250048. Its totient is φ = 116478350208.

The previous prime is 392644697383. The next prime is 392644697407. The reversal of 392644697406 is 604796446293.

It is a self number, because there is not a number n which added to its sum of digits gives 392644697406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392644697407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553665 + ... + 1044908.

It is an arithmetic number, because the mean of its divisors is an integer number (13696582032).

Almost surely, 2^392644697406 is an apocalyptic number.

392644697406 is an abundant number, since it is smaller than the sum of its proper divisors (483936552642).

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

392644697406 is a wasteful number, since it uses less digits than its factorization.

392644697406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598705.

The product of its (nonzero) digits is 47029248, while the sum is 60.

The spelling of 392644697406 in words is "three hundred ninety-two billion, six hundred forty-four million, six hundred ninety-seven thousand, four hundred six".