18418254 has 16 divisors (see below), whose sum is σ = 37195392. Its totient is φ = 6079608.

The previous prime is 18418249. The next prime is 18418261. The reversal of 18418254 is 45281481.

It is a congruent number.

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, 14284 + ... + 15519.

It is an arithmetic number, because the mean of its divisors is an integer number (2324712).

Almost surely, 2^18418254 is an apocalyptic number.

18418254 is an abundant number, since it is smaller than the sum of its proper divisors (18777138).

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

18418254 is a wasteful number, since it uses less digits than its factorization.

18418254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29911.

The product of its digits is 10240, while the sum is 33.

The square root of 18418254 is about 4291.6493332983. The cubic root of 18418254 is about 264.0884976493.

The spelling of 18418254 in words is "eighteen million, four hundred eighteen thousand, two hundred fifty-four".