79220940 has 48 divisors (see below), whose sum is σ = 223534080. Its totient is φ = 20962240.

The previous prime is 79220929. The next prime is 79220971. The reversal of 79220940 is 4902297.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2821 + ... + 12899.

It is an arithmetic number, because the mean of its divisors is an integer number (4656960).

Almost surely, 2^79220940 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 79220940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111767040).

79220940 is an abundant number, since it is smaller than the sum of its proper divisors (144313140).

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

79220940 is a wasteful number, since it uses less digits than its factorization.

79220940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222 (or 10220 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 79220940 is about 8900.6145855216. The cubic root of 79220940 is about 429.4836780940.

The spelling of 79220940 in words is "seventy-nine million, two hundred twenty thousand, nine hundred forty".