79404424 has 32 divisors (see below), whose sum is σ = 162771840. Its totient is φ = 36014400.

The previous prime is 79404421. The next prime is 79404449. The reversal of 79404424 is 42440497.

It is a self number, because there is not a number n which added to its sum of digits gives 79404424.

It is not an unprimeable number, because it can be changed into a prime (79404421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63889 + ... + 65119.

It is an arithmetic number, because the mean of its divisors is an integer number (5086620).

Almost surely, 2^79404424 is an apocalyptic number.

It is an amenable number.

79404424 is an abundant number, since it is smaller than the sum of its proper divisors (83367416).

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

79404424 is a wasteful number, since it uses less digits than its factorization.

79404424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1977 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 79404424 is about 8910.9160022974. The cubic root of 79404424 is about 429.8149988382.

The spelling of 79404424 in words is "seventy-nine million, four hundred four thousand, four hundred twenty-four".