It is a happy number.
2198780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 2198780.
It is a congruent number.
22198780 is an apocalyptic number.
2198780 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 2198780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2198780 is a wasteful number, since it uses less digits than its factorization.
2198780 is an odious number, because the sum of its binary digits is odd.
The square root of 2198780 is about 1482.8283784714. The cubic root of 2198780 is about 130.0350990039.
The spelling of 2198780 in words is "two million, one hundred ninety-eight thousand, seven hundred eighty".