22772528 has 10 divisors (see below), whose sum is σ = 44121804. Its totient is φ = 11386256.

The previous prime is 22772527. The next prime is 22772539. The reversal of 22772528 is 82527722.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22772527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711626 + ... + 711657.

Almost surely, 2^22772528 is an apocalyptic number.

It is an amenable number.

22772528 is a deficient number, since it is larger than the sum of its proper divisors (21349276).

22772528 is a wasteful number, since it uses less digits than its factorization.

22772528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423291 (or 1423285 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 22772528 is about 4772.0569988214. The cubic root of 22772528 is about 283.4460537272.

The spelling of 22772528 in words is "twenty-two million, seven hundred seventy-two thousand, five hundred twenty-eight".