18025946 has 16 divisors (see below), whose sum is σ = 28576800. Its totient is φ = 8504208.

The previous prime is 18025921. The next prime is 18025961. The reversal of 18025946 is 64952081.

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, 10325 + ... + 11943.

It is an arithmetic number, because the mean of its divisors is an integer number (1786050).

Almost surely, 2^18025946 is an apocalyptic number.

18025946 is a deficient number, since it is larger than the sum of its proper divisors (10550854).

18025946 is a wasteful number, since it uses less digits than its factorization.

18025946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 18025946 is about 4245.6973514371. The cubic root of 18025946 is about 262.2000007370.

The spelling of 18025946 in words is "eighteen million, twenty-five thousand, nine hundred forty-six".