22297400 has 24 divisors (see below), whose sum is σ = 51841920. Its totient is φ = 8918880.

The previous prime is 22297397. The next prime is 22297417. The reversal of 22297400 is 479222.

It is a self number, because there is not a number n which added to its sum of digits gives 22297400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55544 + ... + 55943.

It is an arithmetic number, because the mean of its divisors is an integer number (2160080).

Almost surely, 2^22297400 is an apocalyptic number.

22297400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22297400 is an abundant number, since it is smaller than the sum of its proper divisors (29544520).

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

22297400 is a wasteful number, since it uses less digits than its factorization.

22297400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111503 (or 111494 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 22297400 is about 4722.0122829150. The cubic root of 22297400 is about 281.4609018931.

The spelling of 22297400 in words is "twenty-two million, two hundred ninety-seven thousand, four hundred".