It is a tau number, because it is divible by the number of its divisors (80).
It is a nialpdrome in base 12.
It is a congruent number.
18480 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
218480 is an apocalyptic number.
18480 is a gapful number since it is divisible by the number (10) 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 18480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18480 is a wasteful number, since it uses less digits than its factorization.
18480 is an evil number, because the sum of its binary digits is even.
The square root of 18480 is about 135.9411637437. The cubic root of 18480 is about 26.4383281657.
Subtracting from 18480 its reverse (8481), we obtain a palindrome (9999).
The spelling of 18480 in words is "eighteen thousand, four hundred eighty".