79271040 has 256 divisors, whose sum is σ = 277603200. Its totient is φ = 19169280.

The previous prime is 79271033. The next prime is 79271063. The reversal of 79271040 is 4017297.

It is a super-3 number, since 3×79271040³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 79270989 and 79271007.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1495654 + ... + 1495706.

Almost surely, 2^79271040 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 79271040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138801600).

79271040 is an abundant number, since it is smaller than the sum of its proper divisors (198332160).

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

79271040 is a wasteful number, since it uses less digits than its factorization.

79271040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 79271040 is about 8903.4285530912. The cubic root of 79271040 is about 429.5741953991.

The spelling of 79271040 in words is "seventy-nine million, two hundred seventy-one thousand, forty".