18093872 has 20 divisors (see below), whose sum is σ = 35804256. Its totient is φ = 8854080.

The previous prime is 18093827. The next prime is 18093931. The reversal of 18093872 is 27839081.

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, 11279 + ... + 12782.

Almost surely, 2^18093872 is an apocalyptic number.

It is an amenable number.

18093872 is a deficient number, since it is larger than the sum of its proper divisors (17710384).

18093872 is a wasteful number, since it uses less digits than its factorization.

18093872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24116 (or 24110 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 18093872 is about 4253.6892223104. The cubic root of 18093872 is about 262.5289316562.

The spelling of 18093872 in words is "eighteen million, ninety-three thousand, eight hundred seventy-two".