18054218 has 64 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 6443712.

The previous prime is 18054191. The next prime is 18054229. The reversal of 18054218 is 81245081.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79421 + ... + 79647.

It is an arithmetic number, because the mean of its divisors is an integer number (574560).

Almost surely, 2^18054218 is an apocalyptic number.

18054218 is an abundant number, since it is smaller than the sum of its proper divisors (18717622).

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

18054218 is a wasteful number, since it uses less digits than its factorization.

18054218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 18054218 is about 4249.0255353434. The cubic root of 18054218 is about 262.3370078101.

Adding to 18054218 its reverse (81245081), we get a palindrome (99299299).

The spelling of 18054218 in words is "eighteen million, fifty-four thousand, two hundred eighteen".