22440232 has 16 divisors (see below), whose sum is σ = 42130260. Its totient is φ = 11205504.

The previous prime is 22440179. The next prime is 22440239. The reversal of 22440232 is 23204422.

It can be written as a sum of positive squares in 2 ways, for example, as 21958596 + 481636 = 4686^2 + 694^2 .

It is not an unprimeable number, because it can be changed into a prime (22440239) 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, 7498 + ... + 10054.

Almost surely, 2^22440232 is an apocalyptic number.

It is an amenable number.

22440232 is a deficient number, since it is larger than the sum of its proper divisors (19690028).

22440232 is a wasteful number, since it uses less digits than its factorization.

22440232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660 (or 3656 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22440232 is about 4737.1122004867. The cubic root of 22440232 is about 282.0606143700.

Adding to 22440232 its reverse (23204422), we get a palindrome (45644654).

The spelling of 22440232 in words is "twenty-two million, four hundred forty thousand, two hundred thirty-two".