22449109 has 4 divisors (see below), whose sum is σ = 22458816. Its totient is φ = 22439404.

The previous prime is 22449101. The next prime is 22449113. The reversal of 22449109 is 90194422.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22449109 - 2³ = 22449101 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22449101) 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, 852 + ... + 6754.

It is an arithmetic number, because the mean of its divisors is an integer number (5614704).

Almost surely, 2^22449109 is an apocalyptic number.

It is an amenable number.

22449109 is a deficient number, since it is larger than the sum of its proper divisors (9707).

22449109 is an equidigital number, since it uses as much as digits as its factorization.

22449109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9706.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 22449109 is about 4738.0490710840. The cubic root of 22449109 is about 282.0978023692.

The spelling of 22449109 in words is "twenty-two million, four hundred forty-nine thousand, one hundred nine".