79097040 has 160 divisors (see below), whose sum is σ = 297302400. Its totient is φ = 19169280.

The previous prime is 79097021. The next prime is 79097101. The reversal of 79097040 is 4079097.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 79096986 and 79097004.

It is a congruent number.

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, 22096 + ... + 25424.

It is an arithmetic number, because the mean of its divisors is an integer number (1858140).

Almost surely, 2^79097040 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 79097040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148651200).

79097040 is an abundant number, since it is smaller than the sum of its proper divisors (218205360).

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

79097040 is a wasteful number, since it uses less digits than its factorization.

79097040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362 (or 3350 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 79097040 is about 8893.6516684655. The cubic root of 79097040 is about 429.2596599105.

The spelling of 79097040 in words is "seventy-nine million, ninety-seven thousand, forty".