22454549 has 4 divisors (see below), whose sum is σ = 24181836. Its totient is φ = 20727264.

The previous prime is 22454519. The next prime is 22454567. The reversal of 22454549 is 94545422.

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 14303524 + 8151025 = 3782^2 + 2855^2 .

It is a cyclic number.

It is not a de Polignac number, because 22454549 - 2⁸ = 22454293 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 (22454519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863624 + ... + 863649.

It is an arithmetic number, because the mean of its divisors is an integer number (6045459).

Almost surely, 2^22454549 is an apocalyptic number.

It is an amenable number.

22454549 is a deficient number, since it is larger than the sum of its proper divisors (1727287).

22454549 is a wasteful number, since it uses less digits than its factorization.

22454549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727286.

The product of its digits is 57600, while the sum is 35.

The square root of 22454549 is about 4738.6231122553. The cubic root of 22454549 is about 282.1205870612.

The spelling of 22454549 in words is "twenty-two million, four hundred fifty-four thousand, five hundred forty-nine".