22544441 has 4 divisors (see below), whose sum is σ = 22914084. Its totient is φ = 22174800.

The previous prime is 22544437. The next prime is 22544477. The reversal of 22544441 is 14444522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4020025 + 18524416 = 2005^2 + 4304^2 .

It is a cyclic number.

It is not a de Polignac number, because 22544441 - 2² = 22544437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22544441.

It is not an unprimeable number, because it can be changed into a prime (22543441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184730 + ... + 184851.

It is an arithmetic number, because the mean of its divisors is an integer number (5728521).

Almost surely, 2^22544441 is an apocalyptic number.

It is an amenable number.

22544441 is a deficient number, since it is larger than the sum of its proper divisors (369643).

22544441 is an equidigital number, since it uses as much as digits as its factorization.

22544441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369642.

The product of its digits is 5120, while the sum is 26.

The square root of 22544441 is about 4748.0986721002. The cubic root of 22544441 is about 282.4965556789.

Adding to 22544441 its reverse (14444522), we get a palindrome (36988963).

The spelling of 22544441 in words is "twenty-two million, five hundred forty-four thousand, four hundred forty-one".