22277264 has 20 divisors (see below), whose sum is σ = 43755756. Its totient is φ = 10985472.

The previous prime is 22277263. The next prime is 22277273. The reversal of 22277264 is 46277222.

It can be written as a sum of positive squares in 2 ways, for example, as 4804864 + 17472400 = 2192^2 + 4180^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22277264.

It is not an unprimeable number, because it can be changed into a prime (22277263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8369 + ... + 10704.

Almost surely, 2^22277264 is an apocalyptic number.

It is an amenable number.

22277264 is a deficient number, since it is larger than the sum of its proper divisors (21478492).

22277264 is a wasteful number, since it uses less digits than its factorization.

22277264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19154 (or 19148 counting only the distinct ones).

The product of its digits is 18816, while the sum is 32.

The square root of 22277264 is about 4719.8796594829. The cubic root of 22277264 is about 281.3761505526.

The spelling of 22277264 in words is "twenty-two million, two hundred seventy-seven thousand, two hundred sixty-four".