79318020 has 48 divisors (see below), whose sum is σ = 222485760. Its totient is φ = 21113856.

The previous prime is 79318009. The next prime is 79318021. The reversal of 79318020 is 2081397.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (79318021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55029 + ... + 56451.

It is an arithmetic number, because the mean of its divisors is an integer number (4635120).

Almost surely, 2^79318020 is an apocalyptic number.

It is an amenable number.

79318020 is an abundant number, since it is smaller than the sum of its proper divisors (143167740).

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

79318020 is a wasteful number, since it uses less digits than its factorization.

79318020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364 (or 2362 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 79318020 is about 8906.0664717933. The cubic root of 79318020 is about 429.6590410551.

It can be divided in two parts, 7931 and 8020, that added together give a palindrome (15951).

The spelling of 79318020 in words is "seventy-nine million, three hundred eighteen thousand, twenty".