79404144 has 160 divisors (see below), whose sum is σ = 232556544. Its totient is φ = 23224320.

The previous prime is 79404139. The next prime is 79404181. The reversal of 79404144 is 44140497.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1087692 + ... + 1087764.

Almost surely, 2^79404144 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 79404144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116278272).

79404144 is an abundant number, since it is smaller than the sum of its proper divisors (153152400).

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

79404144 is a wasteful number, since it uses less digits than its factorization.

79404144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 79404144 is about 8910.9002912164. The cubic root of 79404144 is about 429.8144936256.

The spelling of 79404144 in words is "seventy-nine million, four hundred four thousand, one hundred forty-four".