22549369 has 4 divisors (see below), whose sum is σ = 23276800. Its totient is φ = 21821940.

The previous prime is 22549349. The next prime is 22549381. The reversal of 22549369 is 96394522.

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 22549369 - 2⁵ = 22549337 is a prime.

It is a super-2 number, since 2×22549369² = 1016948084596322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22549309) 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, 363669 + ... + 363730.

It is an arithmetic number, because the mean of its divisors is an integer number (5819200).

Almost surely, 2^22549369 is an apocalyptic number.

It is an amenable number.

22549369 is a deficient number, since it is larger than the sum of its proper divisors (727431).

22549369 is an equidigital number, since it uses as much as digits as its factorization.

22549369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727430.

The product of its digits is 116640, while the sum is 40.

The square root of 22549369 is about 4748.6175883093. The cubic root of 22549369 is about 282.5171378644.

It can be divided in two parts, 225 and 49369, that added together give a palindrome (49594).

The spelling of 22549369 in words is "twenty-two million, five hundred forty-nine thousand, three hundred sixty-nine".