22468549 has 2 divisors, whose sum is σ = 22468550. Its totient is φ = 22468548.

The previous prime is 22468547. The next prime is 22468553. The reversal of 22468549 is 94586422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11512449 + 10956100 = 3393^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 22468549 - 2¹ = 22468547 is a prime.

Together with 22468547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22468541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11234274 + 11234275.

It is an arithmetic number, because the mean of its divisors is an integer number (11234275).

Almost surely, 2^22468549 is an apocalyptic number.

It is an amenable number.

22468549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22468549 is an equidigital number, since it uses as much as digits as its factorization.

22468549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The square root of 22468549 is about 4740.1001044282. The cubic root of 22468549 is about 282.1792072195.

The spelling of 22468549 in words is "twenty-two million, four hundred sixty-eight thousand, five hundred forty-nine".