18025144 has 16 divisors (see below), whose sum is σ = 34302600. Its totient is φ = 8877792.

The previous prime is 18025109. The next prime is 18025157. The reversal of 18025144 is 44152081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16279 + ... + 17350.

Almost surely, 2^18025144 is an apocalyptic number.

It is an amenable number.

18025144 is a deficient number, since it is larger than the sum of its proper divisors (16277456).

18025144 is a wasteful number, since it uses less digits than its factorization.

18025144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33702 (or 33698 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 18025144 is about 4245.6029018268. The cubic root of 18025144 is about 262.1961121289.

The spelling of 18025144 in words is "eighteen million, twenty-five thousand, one hundred forty-four".