79424520 has 128 divisors (see below), whose sum is σ = 284221440. Its totient is φ = 17360640.

The previous prime is 79424519. The next prime is 79424531. The reversal of 79424520 is 2542497.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17265 + ... + 21375.

It is an arithmetic number, because the mean of its divisors is an integer number (2220480).

Almost surely, 2^79424520 is an apocalyptic number.

79424520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79424520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142110720).

79424520 is an abundant number, since it is smaller than the sum of its proper divisors (204796920).

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

79424520 is a wasteful number, since it uses less digits than its factorization.

79424520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155 (or 4151 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 79424520 is about 8912.0435366980. The cubic root of 79424520 is about 429.8512555655.

The spelling of 79424520 in words is "seventy-nine million, four hundred twenty-four thousand, five hundred twenty".