18077018 has 16 divisors (see below), whose sum is σ = 30222720. Its totient is φ = 8058816.

The previous prime is 18077009. The next prime is 18077021. The reversal of 18077018 is 81077081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13346 + ... + 14637.

It is an arithmetic number, because the mean of its divisors is an integer number (1888920).

Almost surely, 2^18077018 is an apocalyptic number.

18077018 is a deficient number, since it is larger than the sum of its proper divisors (12145702).

18077018 is a wasteful number, since it uses less digits than its factorization.

18077018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28021.

The product of its (nonzero) digits is 3136, while the sum is 32.

The square root of 18077018 is about 4251.7076569303. The cubic root of 18077018 is about 262.4473932372.

The spelling of 18077018 in words is "eighteen million, seventy-seven thousand, eighteen".