22441565 has 12 divisors (see below), whose sum is σ = 28424124. Its totient is φ = 17006976.

The previous prime is 22441543. The next prime is 22441567. The reversal of 22441565 is 56514422.

It can be written as a sum of positive squares in 2 ways, for example, as 5285401 + 17156164 = 2299^2 + 4142^2 .

It is not a de Polignac number, because 22441565 - 2⁶ = 22441501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22441567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4412 + ... + 8021.

It is an arithmetic number, because the mean of its divisors is an integer number (2368677).

Almost surely, 2^22441565 is an apocalyptic number.

It is an amenable number.

22441565 is a deficient number, since it is larger than the sum of its proper divisors (5982559).

22441565 is a wasteful number, since it uses less digits than its factorization.

22441565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12476 (or 12457 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 22441565 is about 4737.2528959303. The cubic root of 22441565 is about 282.0661992700.

Adding to 22441565 its reverse (56514422), we get a palindrome (78955987).

The spelling of 22441565 in words is "twenty-two million, four hundred forty-one thousand, five hundred sixty-five".