18074018 has 16 divisors (see below), whose sum is σ = 28702080. Its totient is φ = 8521296.

The previous prime is 18073981. The next prime is 18074027. The reversal of 18074018 is 81047081.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130 + ... + 6117.

It is an arithmetic number, because the mean of its divisors is an integer number (1793880).

Almost surely, 2^18074018 is an apocalyptic number.

18074018 is a deficient number, since it is larger than the sum of its proper divisors (10628062).

18074018 is a wasteful number, since it uses less digits than its factorization.

18074018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 18074018 is about 4251.3548428707. The cubic root of 18074018 is about 262.4328741438.

The spelling of 18074018 in words is "eighteen million, seventy-four thousand, eighteen".