22438450 has 12 divisors (see below), whose sum is σ = 41735610. Its totient is φ = 8975360.

The previous prime is 22438441. The next prime is 22438457. The reversal of 22438450 is 5483422.

It can be written as a sum of positive squares in 3 ways, for example, as 8696601 + 13741849 = 2949^2 + 3707^2 .

It is not an unprimeable number, because it can be changed into a prime (22438457) 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 5 ways as a sum of consecutive naturals, for example, 224335 + ... + 224434.

Almost surely, 2^22438450 is an apocalyptic number.

22438450 is a deficient number, since it is larger than the sum of its proper divisors (19297160).

22438450 is a wasteful number, since it uses less digits than its factorization.

22438450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448781 (or 448776 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 22438450 is about 4736.9241074773. The cubic root of 22438450 is about 282.0531479392.

The spelling of 22438450 in words is "twenty-two million, four hundred thirty-eight thousand, four hundred fifty".