It is a happy number.
It is an ABA number since it can be written as A⋅BA, here for A=17, B=2.
It is a d-powerful number, because it can be written as 213 + 214 + 215 + 84 + 216 + 221 + 46 .
It is a nialpdrome in base 16.
It is a zygodrome in base 16.
It is a congruent number.
In principle, a polygon with 2228224 sides can be constructed with ruler and compass.
22228224 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 2228224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2359287).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2228224 is an frugal number, since it uses more digits than its factorization.
2228224 is an evil number, because the sum of its binary digits is even.
The square root of 2228224 is about 1492.7236850804. The cubic root of 2228224 is about 130.6129632614.
The spelling of 2228224 in words is "two million, two hundred twenty-eight thousand, two hundred twenty-four".