18118466 has 8 divisors (see below), whose sum is σ = 27227664. Its totient is φ = 9042580.

The previous prime is 18118367. The next prime is 18118469. The reversal of 18118466 is 66481181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18118469) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6920 + ... + 9171.

It is an arithmetic number, because the mean of its divisors is an integer number (3403458).

Almost surely, 2^18118466 is an apocalyptic number.

18118466 is a deficient number, since it is larger than the sum of its proper divisors (9109198).

18118466 is a wasteful number, since it uses less digits than its factorization.

18118466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16656.

The product of its digits is 9216, while the sum is 35.

The square root of 18118466 is about 4256.5791429269. The cubic root of 18118466 is about 262.6478248257.

The spelling of 18118466 in words is "eighteen million, one hundred eighteen thousand, four hundred sixty-six".