18088532 has 72 divisors (see below), whose sum is σ = 42006720. Its totient is φ = 6652800.

The previous prime is 18088519. The next prime is 18088541. The reversal of 18088532 is 23588081.

It is a junction number, because it is equal to n+sod(n) for n = 18088492 and 18088501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64232 + ... + 64512.

Almost surely, 2^18088532 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 18088532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21003360).

18088532 is an abundant number, since it is smaller than the sum of its proper divisors (23918188).

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

18088532 is a wasteful number, since it uses less digits than its factorization.

18088532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 18088532 is about 4253.0614855654. The cubic root of 18088532 is about 262.5031026088.

The spelling of 18088532 in words is "eighteen million, eighty-eight thousand, five hundred thirty-two".