18108288 has 96 divisors (see below), whose sum is σ = 56885400. Its totient is φ = 5483520.

The previous prime is 18108287. The next prime is 18108317. The reversal of 18108288 is 88280181.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18108283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11958 + ... + 13386.

Almost surely, 2^18108288 is an apocalyptic number.

18108288 is a gapful number since it is divisible by the number (18) 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 18108288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28442700).

18108288 is an abundant number, since it is smaller than the sum of its proper divisors (38777112).

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

18108288 is a wasteful number, since it uses less digits than its factorization.

18108288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 36.

The square root of 18108288 is about 4255.3834139828. The cubic root of 18108288 is about 262.5986350418.

The spelling of 18108288 in words is "eighteen million, one hundred eight thousand, two hundred eighty-eight".