22266880 has 44 divisors (see below), whose sum is σ = 53426700. Its totient is φ = 8904704.

The previous prime is 22266863. The next prime is 22266901. The reversal of 22266880 is 8866222.

It can be written as a sum of positive squares in 2 ways, for example, as 3326976 + 18939904 = 1824^2 + 4352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2946 + ... + 7294.

Almost surely, 2^22266880 is an apocalyptic number.

22266880 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 22266880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26713350).

22266880 is an abundant number, since it is smaller than the sum of its proper divisors (31159820).

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

22266880 is an equidigital number, since it uses as much as digits as its factorization.

22266880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374 (or 4356 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 22266880 is about 4718.7795032190. The cubic root of 22266880 is about 281.3324248952.

The spelling of 22266880 in words is "twenty-two million, two hundred sixty-six thousand, eight hundred eighty".