18074688 has 56 divisors (see below), whose sum is σ = 49914048. Its totient is φ = 5761536.

The previous prime is 18074671. The next prime is 18074699. The reversal of 18074688 is 88647081.

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, 2370 + ... + 6462.

Almost surely, 2^18074688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18074688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24957024).

18074688 is an abundant number, since it is smaller than the sum of its proper divisors (31839360).

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

18074688 is a wasteful number, since it uses less digits than its factorization.

18074688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131 (or 4121 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 18074688 is about 4251.4336405500. The cubic root of 18074688 is about 262.4361168807.

The spelling of 18074688 in words is "eighteen million, seventy-four thousand, six hundred eighty-eight".