It is a congruent number.
It is an unprimeable number.
Almost surely, 222850520 is an apocalyptic number.
22850520 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 22850520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42750720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22850520 is a wasteful number, since it uses less digits than its factorization.
22850520 is an evil number, because the sum of its binary digits is even.
The square root of 22850520 is about 4780.2217521784. The cubic root of 22850520 is about 283.7692697167.
The spelling of 22850520 in words is "twenty-two million, eight hundred fifty thousand, five hundred twenty".