18088704 has 72 divisors (see below), whose sum is σ = 53511920. Its totient is φ = 6027264.

The previous prime is 18088691. The next prime is 18088711. The reversal of 18088704 is 40788081.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5604 + ... + 8220.

Almost surely, 2^18088704 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 18088704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26755960).

18088704 is an abundant number, since it is smaller than the sum of its proper divisors (35423216).

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

18088704 is an equidigital number, since it uses as much as digits as its factorization.

18088704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 2622 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 18088704 is about 4253.0817062455. The cubic root of 18088704 is about 262.5039346349.

The spelling of 18088704 in words is "eighteen million, eighty-eight thousand, seven hundred four".