222780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
2222780 is an apocalyptic number.
222780 is a gapful number since it is divisible by the number (20) 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 222780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
222780 is a wasteful number, since it uses less digits than its factorization.
222780 is an evil number, because the sum of its binary digits is even.
The square root of 222780 is about 471.9957626928. The cubic root of 222780 is about 60.6213215609.
The spelling of 222780 in words is "two hundred twenty-two thousand, seven hundred eighty".