392417964 has 72 divisors (see below), whose sum is σ = 1037137920. Its totient is φ = 124956000.

The previous prime is 392417951. The next prime is 392417969. The reversal of 392417964 is 469714293.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (392417969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85939 + ... + 90389.

Almost surely, 2^392417964 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 392417964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518568960).

392417964 is an abundant number, since it is smaller than the sum of its proper divisors (644719956).

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

392417964 is a wasteful number, since it uses less digits than its factorization.

392417964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571 (or 4566 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 392417964 is about 19809.5422460995. The cubic root of 392417964 is about 732.1211615261.

The spelling of 392417964 in words is "three hundred ninety-two million, four hundred seventeen thousand, nine hundred sixty-four".