79740276 has 96 divisors (see below), whose sum is σ = 233640960. Its totient is φ = 20563200.

The previous prime is 79740263. The next prime is 79740293. The reversal of 79740276 is 67204797.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194760 + ... + 195168.

It is an arithmetic number, because the mean of its divisors is an integer number (2433760).

Almost surely, 2^79740276 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 79740276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116820480).

79740276 is an abundant number, since it is smaller than the sum of its proper divisors (153900684).

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

79740276 is a wasteful number, since it uses less digits than its factorization.

79740276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 79740276 is about 8929.7410936712. The cubic root of 79740276 is about 430.4201338107.

The spelling of 79740276 in words is "seventy-nine million, seven hundred forty thousand, two hundred seventy-six".