79222464 has 84 divisors (see below), whose sum is σ = 230083360. Its totient is φ = 26058240.

The previous prime is 79222441. The next prime is 79222477. The reversal of 79222464 is 46422297.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44634 + ... + 46374.

Almost surely, 2^79222464 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 79222464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115041680).

79222464 is an abundant number, since it is smaller than the sum of its proper divisors (150860896).

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

79222464 is a wasteful number, since it uses less digits than its factorization.

79222464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1825 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 79222464 is about 8900.7001971755. The cubic root of 79222464 is about 429.4864321172.

The spelling of 79222464 in words is "seventy-nine million, two hundred twenty-two thousand, four hundred sixty-four".