22257344 has 14 divisors (see below), whose sum is σ = 44167044. Its totient is φ = 11128640.

The previous prime is 22257343. The next prime is 22257401. The reversal of 22257344 is 44375222.

It is not an unprimeable number, because it can be changed into a prime (22257343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173822 + ... + 173949.

Almost surely, 2^22257344 is an apocalyptic number.

It is an amenable number.

22257344 is a deficient number, since it is larger than the sum of its proper divisors (21909700).

22257344 is an equidigital number, since it uses as much as digits as its factorization.

22257344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347783 (or 347773 counting only the distinct ones).

The product of its digits is 13440, while the sum is 29.

The square root of 22257344 is about 4717.7689642457. The cubic root of 22257344 is about 281.2922580783.

The spelling of 22257344 in words is "twenty-two million, two hundred fifty-seven thousand, three hundred forty-four".