18045698 has 16 divisors (see below), whose sum is σ = 29777760. Its totient is φ = 8201380.

The previous prime is 18045679. The next prime is 18045739. The reversal of 18045698 is 89654081.

It is a Curzon 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, 728 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (1861110).

Almost surely, 2^18045698 is an apocalyptic number.

18045698 is a deficient number, since it is larger than the sum of its proper divisors (11732062).

18045698 is an equidigital number, since it uses as much as digits as its factorization.

18045698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814 (or 6792 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 18045698 is about 4248.0228342136. The cubic root of 18045698 is about 262.2957346666.

The spelling of 18045698 in words is "eighteen million, forty-five thousand, six hundred ninety-eight".