79290018 has 24 divisors (see below), whose sum is σ = 173467008. Its totient is φ = 26172792.

The previous prime is 79290017. The next prime is 79290047. The reversal of 79290018 is 81009297.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79290017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19530 + ... + 23237.

It is an arithmetic number, because the mean of its divisors is an integer number (7227792).

Almost surely, 2^79290018 is an apocalyptic number.

79290018 is an abundant number, since it is smaller than the sum of its proper divisors (94176990).

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

79290018 is a wasteful number, since it uses less digits than its factorization.

79290018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42878 (or 42875 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 79290018 is about 8904.4942585191. The cubic root of 79290018 is about 429.6084736112.

The spelling of 79290018 in words is "seventy-nine million, two hundred ninety thousand, eighteen".