22747244 has 24 divisors (see below), whose sum is σ = 43168608. Its totient is φ = 10425600.

The previous prime is 22747217. The next prime is 22747261. The reversal of 22747244 is 44274722.

It is a self number, because there is not a number n which added to its sum of digits gives 22747244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6404 + ... + 9300.

It is an arithmetic number, because the mean of its divisors is an integer number (1798692).

Almost surely, 2^22747244 is an apocalyptic number.

It is an amenable number.

22747244 is a deficient number, since it is larger than the sum of its proper divisors (20421364).

22747244 is a wasteful number, since it uses less digits than its factorization.

22747244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3063 counting only the distinct ones).

The product of its digits is 25088, while the sum is 32.

The square root of 22747244 is about 4769.4070910334. The cubic root of 22747244 is about 283.3411128967.

The spelling of 22747244 in words is "twenty-two million, seven hundred forty-seven thousand, two hundred forty-four".