22768912 has 20 divisors (see below), whose sum is σ = 45308236. Its totient is φ = 11076480.

The previous prime is 22768903. The next prime is 22768939. The reversal of 22768912 is 21986722.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 10265616 = 3536^2 + 3204^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 18639 + ... + 19822.

Almost surely, 2^22768912 is an apocalyptic number.

It is an amenable number.

22768912 is a deficient number, since it is larger than the sum of its proper divisors (22539324).

22768912 is a wasteful number, since it uses less digits than its factorization.

22768912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38506 (or 38500 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 22768912 is about 4771.6781115243. The cubic root of 22768912 is about 283.4310503397.

The spelling of 22768912 in words is "twenty-two million, seven hundred sixty-eight thousand, nine hundred twelve".