18088000 has 224 divisors, whose sum is σ = 57058560. Its totient is φ = 5529600.

The previous prime is 18087991. The next prime is 18088027. The reversal of 18088000 is 88081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 951991 + ... + 952009.

Almost surely, 2^18088000 is an apocalyptic number.

18088000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18088000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28529280).

18088000 is an abundant number, since it is smaller than the sum of its proper divisors (38970560).

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

18088000 is a wasteful number, since it uses less digits than its factorization.

18088000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 18088000 is about 4252.9989419232. The cubic root of 18088000 is about 262.5005290995.

The spelling of 18088000 in words is "eighteen million, eighty-eight thousand".