22243432 has 16 divisors (see below), whose sum is σ = 42120900. Its totient is φ = 11011200.

The previous prime is 22243423. The next prime is 22243439. The reversal of 22243432 is 23434222.

It can be written as a sum of positive squares in 2 ways, for example, as 21215236 + 1028196 = 4606^2 + 1014^2 .

It is not an unprimeable number, because it can be changed into a prime (22243439) 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 in 3 ways as a sum of consecutive naturals, for example, 12957 + ... + 14572.

Almost surely, 2^22243432 is an apocalyptic number.

It is an amenable number.

22243432 is a deficient number, since it is larger than the sum of its proper divisors (19877468).

22243432 is a wasteful number, since it uses less digits than its factorization.

22243432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27636 (or 27632 counting only the distinct ones).

The product of its digits is 2304, while the sum is 22.

The square root of 22243432 is about 4716.2943080346. The cubic root of 22243432 is about 281.2336384227.

Adding to 22243432 its reverse (23434222), we get a palindrome (45677654).

The spelling of 22243432 in words is "twenty-two million, two hundred forty-three thousand, four hundred thirty-two".