It is a happy number.
2257920 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
22257920 is an apocalyptic number.
2257920 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 2257920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4550481).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2257920 is a wasteful number, since it uses less digits than its factorization.
2257920 is an evil number, because the sum of its binary digits is even.
The square root of 2257920 is about 1502.6376808799. The cubic root of 2257920 is about 131.1906398240.
The spelling of 2257920 in words is "two million, two hundred fifty-seven thousand, nine hundred twenty".