79242720 has 48 divisors (see below), whose sum is σ = 249616080. Its totient is φ = 21131264.

The previous prime is 79242707. The next prime is 79242739. The reversal of 79242720 is 2724297.

It is a tau number, because it is divible by the number of its divisors (48).

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82065 + ... + 83024.

It is an arithmetic number, because the mean of its divisors is an integer number (5200335).

Almost surely, 2^79242720 is an apocalyptic number.

It is an amenable number.

79242720 is an abundant number, since it is smaller than the sum of its proper divisors (170373360).

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

79242720 is a wasteful number, since it uses less digits than its factorization.

79242720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165107 (or 165099 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 79242720 is about 8901.8380124556. The cubic root of 79242720 is about 429.5230334185.

The spelling of 79242720 in words is "seventy-nine million, two hundred forty-two thousand, seven hundred twenty".