18088544 has 48 divisors (see below), whose sum is σ = 38673936. Its totient is φ = 8294400.

The previous prime is 18088541. The next prime is 18088573. The reversal of 18088544 is 44588081.

It is a junction number, because it is equal to n+sod(n) for n = 18088498 and 18088507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18088541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21899 + ... + 22709.

It is an arithmetic number, because the mean of its divisors is an integer number (805707).

Almost surely, 2^18088544 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 18088544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19336968).

18088544 is an abundant number, since it is smaller than the sum of its proper divisors (20585392).

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

18088544 is a wasteful number, since it uses less digits than its factorization.

18088544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 18088544 is about 4253.0628963137. The cubic root of 18088544 is about 262.5031606573.

The spelling of 18088544 in words is "eighteen million, eighty-eight thousand, five hundred forty-four".