22544401 has 4 divisors (see below), whose sum is σ = 24593904. Its totient is φ = 20494900.

The previous prime is 22544399. The next prime is 22544413. The reversal of 22544401 is 10444522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22544401 - 2¹ = 22544399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22544201) 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, 1024735 + ... + 1024756.

It is an arithmetic number, because the mean of its divisors is an integer number (6148476).

Almost surely, 2^22544401 is an apocalyptic number.

It is an amenable number.

22544401 is a deficient number, since it is larger than the sum of its proper divisors (2049503).

22544401 is a wasteful number, since it uses less digits than its factorization.

22544401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049502.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 22544401 is about 4748.0944598860. The cubic root of 22544401 is about 282.4963886034.

Adding to 22544401 its reverse (10444522), we get a palindrome (32988923).

The spelling of 22544401 in words is "twenty-two million, five hundred forty-four thousand, four hundred one".