79425420 has 48 divisors (see below), whose sum is σ = 223087200. Its totient is φ = 21113856.

The previous prime is 79425413. The next prime is 79425433. The reversal of 79425420 is 2452497.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19044 + ... + 22836.

It is an arithmetic number, because the mean of its divisors is an integer number (4647650).

Almost surely, 2^79425420 is an apocalyptic number.

It is an amenable number.

79425420 is an abundant number, since it is smaller than the sum of its proper divisors (143661780).

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

79425420 is a wasteful number, since it uses less digits than its factorization.

79425420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154 (or 4152 counting only the distinct ones).

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

The square root of 79425420 is about 8912.0940300246. The cubic root of 79425420 is about 429.8528791811.

The spelling of 79425420 in words is "seventy-nine million, four hundred twenty-five thousand, four hundred twenty".