22784242 has 12 divisors (see below), whose sum is σ = 37008090. Its totient is φ = 10515648.

The previous prime is 22784189. The next prime is 22784243. The reversal of 22784242 is 24248722.

It can be written as a sum of positive squares in 3 ways, for example, as 13242321 + 9541921 = 3639^2 + 3089^2 .

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 5 ways as a sum of consecutive naturals, for example, 33367 + ... + 34042.

Almost surely, 2^22784242 is an apocalyptic number.

22784242 is a deficient number, since it is larger than the sum of its proper divisors (14223848).

22784242 is a wasteful number, since it uses less digits than its factorization.

22784242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67437 (or 67424 counting only the distinct ones).

The product of its digits is 14336, while the sum is 31.

The square root of 22784242 is about 4773.2841943467. The cubic root of 22784242 is about 283.4946461647.

The spelling of 22784242 in words is "twenty-two million, seven hundred eighty-four thousand, two hundred forty-two".