22784244 has 24 divisors (see below), whose sum is σ = 60758208. Its totient is φ = 6509760.

The previous prime is 22784243. The next prime is 22784257. The reversal of 22784244 is 44248722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22784243) 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, 135537 + ... + 135704.

It is an arithmetic number, because the mean of its divisors is an integer number (2531592).

Almost surely, 2^22784244 is an apocalyptic number.

It is an amenable number.

22784244 is an abundant number, since it is smaller than the sum of its proper divisors (37973964).

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

22784244 is a wasteful number, since it uses less digits than its factorization.

22784244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271255 (or 271253 counting only the distinct ones).

The product of its digits is 28672, while the sum is 33.

The square root of 22784244 is about 4773.2844038461. The cubic root of 22784244 is about 283.4946544597.

The spelling of 22784244 in words is "twenty-two million, seven hundred eighty-four thousand, two hundred forty-four".