79216280 has 96 divisors (see below), whose sum is σ = 211150800. Its totient is φ = 26568960.

The previous prime is 79216229. The next prime is 79216307. The reversal of 79216280 is 8261297.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 79216280.

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, 62291 + ... + 63549.

Almost surely, 2^79216280 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 79216280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105575400).

79216280 is an abundant number, since it is smaller than the sum of its proper divisors (131934520).

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

79216280 is a wasteful number, since it uses less digits than its factorization.

79216280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 79216280 is about 8900.3528019961. The cubic root of 79216280 is about 429.4752567802.

The spelling of 79216280 in words is "seventy-nine million, two hundred sixteen thousand, two hundred eighty".