22563772 has 24 divisors (see below), whose sum is σ = 49230720. Its totient is φ = 8790960.

The previous prime is 22563767. The next prime is 22563781. The reversal of 22563772 is 27736522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36322 + ... + 36937.

It is an arithmetic number, because the mean of its divisors is an integer number (2051280).

Almost surely, 2^22563772 is an apocalyptic number.

22563772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22563772 is an abundant number, since it is smaller than the sum of its proper divisors (26666948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22563772 is a wasteful number, since it uses less digits than its factorization.

22563772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73281 (or 73279 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 22563772 is about 4750.1338928498. The cubic root of 22563772 is about 282.5772759595.

The spelling of 22563772 in words is "twenty-two million, five hundred sixty-three thousand, seven hundred seventy-two".