79313280 has 128 divisors (see below), whose sum is σ = 255938400. Its totient is φ = 20889600.

The previous prime is 79313257. The next prime is 79313293. The reversal of 79313280 is 8231397.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193716 + ... + 194124.

Almost surely, 2^79313280 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 79313280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127969200).

79313280 is an abundant number, since it is smaller than the sum of its proper divisors (176625120).

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

79313280 is a wasteful number, since it uses less digits than its factorization.

79313280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 79313280 is about 8905.8003570707. The cubic root of 79313280 is about 429.6504821575.

It can be divided in two parts, 7931 and 3280, that added together give a palindrome (11211).

The spelling of 79313280 in words is "seventy-nine million, three hundred thirteen thousand, two hundred eighty".