22797228 has 12 divisors (see below), whose sum is σ = 53193560. Its totient is φ = 7599072.

The previous prime is 22797193. The next prime is 22797263. The reversal of 22797228 is 82279722.

It is an interprime number because it is at equal distance from previous prime (22797193) and next prime (22797263).

It is a tau number, because it is divible by the number of its divisors (12).

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, 949873 + ... + 949896.

Almost surely, 2^22797228 is an apocalyptic number.

It is an amenable number.

22797228 is an abundant number, since it is smaller than the sum of its proper divisors (30396332).

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

22797228 is a wasteful number, since it uses less digits than its factorization.

22797228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899776 (or 1899774 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 22797228 is about 4774.6442799438. The cubic root of 22797228 is about 283.5484956962.

The spelling of 22797228 in words is "twenty-two million, seven hundred ninety-seven thousand, two hundred twenty-eight".