22236944 has 10 divisors (see below), whose sum is σ = 43084110. Its totient is φ = 11118464.

The previous prime is 22236943. The next prime is 22236953. The reversal of 22236944 is 44963222.

It can be written as a sum of positive squares in only one way, i.e., 11478544 + 10758400 = 3388^2 + 3280^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22236944.

It is not an unprimeable number, because it can be changed into a prime (22236943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694889 + ... + 694920.

It is an arithmetic number, because the mean of its divisors is an integer number (4308411).

Almost surely, 2^22236944 is an apocalyptic number.

It is an amenable number.

22236944 is a deficient number, since it is larger than the sum of its proper divisors (20847166).

22236944 is a wasteful number, since it uses less digits than its factorization.

22236944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389817 (or 1389811 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 22236944 is about 4715.6064297182. The cubic root of 22236944 is about 281.2062922038.

The spelling of 22236944 in words is "twenty-two million, two hundred thirty-six thousand, nine hundred forty-four".