72790018 has 16 divisors (see below), whose sum is σ = 125697024. Its totient is φ = 30967200.

The previous prime is 72790001. The next prime is 72790031. The reversal of 72790018 is 81009727.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17058 + ... + 20893.

It is an arithmetic number, because the mean of its divisors is an integer number (7856064).

Almost surely, 2^72790018 is an apocalyptic number.

72790018 is a deficient number, since it is larger than the sum of its proper divisors (52907006).

72790018 is a wasteful number, since it uses less digits than its factorization.

72790018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38097.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 72790018 is about 8531.7066288053. The cubic root of 72790018 is about 417.5328105974.

The spelling of 72790018 in words is "seventy-two million, seven hundred ninety thousand, eighteen".