22297360 has 20 divisors (see below), whose sum is σ = 51841548. Its totient is φ = 8918912.

The previous prime is 22297357. The next prime is 22297381. The reversal of 22297360 is 6379222.

It can be written as a sum of positive squares in 2 ways, for example, as 9935104 + 12362256 = 3152^2 + 3516^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 139279 + ... + 139438.

Almost surely, 2^22297360 is an apocalyptic number.

22297360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22297360 is an abundant number, since it is smaller than the sum of its proper divisors (29544188).

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

22297360 is a wasteful number, since it uses less digits than its factorization.

22297360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278730 (or 278724 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 22297360 is about 4722.0080474307. The cubic root of 22297360 is about 281.4607335858.

The spelling of 22297360 in words is "twenty-two million, two hundred ninety-seven thousand, three hundred sixty".