79365040 has 40 divisors (see below), whose sum is σ = 185956848. Its totient is φ = 31499520.

The previous prime is 79365029. The next prime is 79365047. The reversal of 79365040 is 4056397.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 79364987 and 79365005.

It is not an unprimeable number, because it can be changed into a prime (79365047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6694 + ... + 14266.

Almost surely, 2^79365040 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 79365040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92978424).

79365040 is an abundant number, since it is smaller than the sum of its proper divisors (106591808).

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

79365040 is a wasteful number, since it uses less digits than its factorization.

79365040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717 (or 7711 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 79365040 is about 8908.7058543876. The cubic root of 79365040 is about 429.7439254121.

The spelling of 79365040 in words is "seventy-nine million, three hundred sixty-five thousand, forty".