Multipling 28224 by its product of digits (256), we get a square (7225344 = 26882).
The square root of 28224 is 168.
It is a tau number, because it is divible by the number of its divisors (63).
It is a nude number because it is divisible by every one of its digits.
It is a nialpdrome in base 14.
It is a zygodrome in base 6.
28224 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
28224 is a Friedman number, since it can be written as (28*(4+2))^2, using all its digits and the basic arithmetic operations.
228224 is an apocalyptic number.
28224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
28224 is the 168-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28224
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28224 is a wasteful number, since it uses less digits than its factorization.
28224 is an evil number, because the sum of its binary digits is even.
The cubic root of 28224 is about 30.4466504441.
The spelling of 28224 in words is "twenty-eight thousand, two hundred twenty-four".