It is a harmonic number, since the harmonic mean of its divisors is an integer.
It is a nialpdrome in base 12.
It is a self number, because there is not a number n which added to its sum of digits gives 18600.
It is an unprimeable number.
18600 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
218600 is an apocalyptic number.
18600 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 18600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18600 is a wasteful number, since it uses less digits than its factorization.
18600 is an odious number, because the sum of its binary digits is odd.
The square root of 18600 is about 136.3818169699. The cubic root of 18600 is about 26.4954305637.
The spelling of 18600 in words is "eighteen thousand, six hundred".