22225280 has 192 divisors, whose sum is σ = 68372640. Its totient is φ = 6758400.

The previous prime is 22225279. The next prime is 22225283. The reversal of 22225280 is 8252222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542060 + ... + 542100.

Almost surely, 2^22225280 is an apocalyptic number.

22225280 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 22225280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34186320).

22225280 is an abundant number, since it is smaller than the sum of its proper divisors (46147360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22225280 is a wasteful number, since it uses less digits than its factorization.

22225280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 22225280 is about 4714.3695230646. The cubic root of 22225280 is about 281.1571163241.

The spelling of 22225280 in words is "twenty-two million, two hundred twenty-five thousand, two hundred eighty".