22449538 has 16 divisors (see below), whose sum is σ = 35235000. Its totient is φ = 10713472.

The previous prime is 22449533. The next prime is 22449547. The reversal of 22449538 is 83594422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9467929 + 12981609 = 3077^2 + 3603^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22449497 and 22449506.

It is not an unprimeable number, because it can be changed into a prime (22449533) 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 7 ways as a sum of consecutive naturals, for example, 2988 + ... + 7336.

Almost surely, 2^22449538 is an apocalyptic number.

22449538 is a deficient number, since it is larger than the sum of its proper divisors (12785462).

22449538 is a wasteful number, since it uses less digits than its factorization.

22449538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469.

The product of its digits is 69120, while the sum is 37.

The square root of 22449538 is about 4738.0943426656. The cubic root of 22449538 is about 282.0995993104.

The spelling of 22449538 in words is "twenty-two million, four hundred forty-nine thousand, five hundred thirty-eight".