79424280 has 128 divisors (see below), whose sum is σ = 285163200. Its totient is φ = 19547136.

The previous prime is 79424273. The next prime is 79424297. The reversal of 79424280 is 8242497.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 11212 + ... + 16868.

Almost surely, 2^79424280 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 79424280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142581600).

79424280 is an abundant number, since it is smaller than the sum of its proper divisors (205738920).

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

79424280 is a wasteful number, since it uses less digits than its factorization.

79424280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690 (or 5680 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 79424280 is about 8912.0300717625. The cubic root of 79424280 is about 429.8508225992.

The spelling of 79424280 in words is "seventy-nine million, four hundred twenty-four thousand, two hundred eighty".