79126840 has 64 divisors (see below), whose sum is σ = 203031360. Its totient is φ = 27494400.

The previous prime is 79126829. The next prime is 79126841. The reversal of 79126840 is 4862197.

It is a super-2 number, since 2×79126840² = 12522113616771200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79126840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79126841) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4365 + ... + 13315.

It is an arithmetic number, because the mean of its divisors is an integer number (3172365).

Almost surely, 2^79126840 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 79126840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101515680).

79126840 is an abundant number, since it is smaller than the sum of its proper divisors (123904520).

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

79126840 is a wasteful number, since it uses less digits than its factorization.

79126840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8992 (or 8988 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 79126840 is about 8895.3268630220. The cubic root of 79126840 is about 429.3135613449.

The spelling of 79126840 in words is "seventy-nine million, one hundred twenty-six thousand, eight hundred forty".