22744812 has 24 divisors (see below), whose sum is σ = 53561200. Its totient is φ = 7511616.

The previous prime is 22744783. The next prime is 22744819. The reversal of 22744812 is 21844722.

It is a self number, because there is not a number n which added to its sum of digits gives 22744812.

It is not an unprimeable number, because it can be changed into a prime (22744819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7387 + ... + 10002.

Almost surely, 2^22744812 is an apocalyptic number.

It is an amenable number.

22744812 is an abundant number, since it is smaller than the sum of its proper divisors (30816388).

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

22744812 is a wasteful number, since it uses less digits than its factorization.

22744812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17505 (or 17503 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 22744812 is about 4769.1521259025. The cubic root of 22744812 is about 283.3310148215.

The spelling of 22744812 in words is "twenty-two million, seven hundred forty-four thousand, eight hundred twelve".