79440972 has 48 divisors (see below), whose sum is σ = 206072832. Its totient is φ = 23653440.

The previous prime is 79440967. The next prime is 79440979. The reversal of 79440972 is 27904497.

It is not an unprimeable number, because it can be changed into a prime (79440979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3378 + ... + 13049.

It is an arithmetic number, because the mean of its divisors is an integer number (4293184).

Almost surely, 2^79440972 is an apocalyptic number.

It is an amenable number.

79440972 is an abundant number, since it is smaller than the sum of its proper divisors (126631860).

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

79440972 is a wasteful number, since it uses less digits than its factorization.

79440972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16478 (or 16476 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 79440972 is about 8912.9665095298. The cubic root of 79440972 is about 429.8809333217.

The spelling of 79440972 in words is "seventy-nine million, four hundred forty thousand, nine hundred seventy-two".