218736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 218736.
218736 is a Friedman number, since it can be written as 31*(76+8)^2, using all its digits and the basic arithmetic operations.
2218736 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 218736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
218736 is a wasteful number, since it uses less digits than its factorization.
218736 is an odious number, because the sum of its binary digits is odd.
The square root of 218736 is about 467.6922064777. The cubic root of 218736 is about 60.2522711678.
The spelling of 218736 in words is "two hundred eighteen thousand, seven hundred thirty-six".