18024 has 16 divisors (see below), whose sum is σ = 45120. Its totient is φ = 6000.

The previous prime is 18013. The next prime is 18041. The reversal of 18024 is 42081.

It is a plaindrome in base 16.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 17994 and 18012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352 + ... + 399.

It is an arithmetic number, because the mean of its divisors is an integer number (2820).

2¹⁸⁰²⁴ is an apocalyptic number.

It is an amenable number.

18024 is an abundant number, since it is smaller than the sum of its proper divisors (27096).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22560).

18024 is a wasteful number, since it uses less digits than its factorization.

18024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 18024 is about 134.2534915747. The cubic root of 18024 is about 26.2190565087.

The spelling of 18024 in words is "eighteen thousand, twenty-four".