22257764 has 12 divisors (see below), whose sum is σ = 39071088. Its totient is φ = 11094600.

The previous prime is 22257749. The next prime is 22257779. The reversal of 22257764 is 46775222.

It is an interprime number because it is at equal distance from previous prime (22257749) and next prime (22257779).

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, 7082 + ... + 9729.

It is an arithmetic number, because the mean of its divisors is an integer number (3255924).

Almost surely, 2^22257764 is an apocalyptic number.

It is an amenable number.

22257764 is a deficient number, since it is larger than the sum of its proper divisors (16813324).

22257764 is a wasteful number, since it uses less digits than its factorization.

22257764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17146 (or 17144 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 22257764 is about 4717.8134766012. The cubic root of 22257764 is about 281.2940274120.

The spelling of 22257764 in words is "twenty-two million, two hundred fifty-seven thousand, seven hundred sixty-four".