79440732 has 72 divisors (see below), whose sum is σ = 230630400. Its totient is φ = 22585248.

The previous prime is 79440709. The next prime is 79440791. The reversal of 79440732 is 23704497.

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 23 ways as a sum of consecutive naturals, for example, 59569 + ... + 60887.

It is an arithmetic number, because the mean of its divisors is an integer number (3203200).

Almost surely, 2^79440732 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 79440732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115315200).

79440732 is an abundant number, since it is smaller than the sum of its proper divisors (151189668).

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

79440732 is a wasteful number, since it uses less digits than its factorization.

79440732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 79440732 is about 8912.9530459887. The cubic root of 79440732 is about 429.8805004152.

The spelling of 79440732 in words is "seventy-nine million, four hundred forty thousand, seven hundred thirty-two".