79722340 has 24 divisors (see below), whose sum is σ = 170980992. Its totient is φ = 31210080.

The previous prime is 79722337. The next prime is 79722353. The reversal of 79722340 is 4322797.

It is a junction number, because it is equal to n+sod(n) for n = 79722296 and 79722305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41466 + ... + 43345.

It is an arithmetic number, because the mean of its divisors is an integer number (7124208).

Almost surely, 2^79722340 is an apocalyptic number.

It is an amenable number.

79722340 is an abundant number, since it is smaller than the sum of its proper divisors (91258652).

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

79722340 is a wasteful number, since it uses less digits than its factorization.

79722340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84867 (or 84865 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 79722340 is about 8928.7367527551. The cubic root of 79722340 is about 430.3878598885.

The spelling of 79722340 in words is "seventy-nine million, seven hundred twenty-two thousand, three hundred forty".