22349549 has 2 divisors, whose sum is σ = 22349550. Its totient is φ = 22349548.

The previous prime is 22349539. The next prime is 22349557. The reversal of 22349549 is 94594322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21557449 + 792100 = 4643^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 22349549 - 2⁴ = 22349533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22349539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11174774 + 11174775.

It is an arithmetic number, because the mean of its divisors is an integer number (11174775).

Almost surely, 2^22349549 is an apocalyptic number.

It is an amenable number.

22349549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22349549 is an equidigital number, since it uses as much as digits as its factorization.

22349549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 22349549 is about 4727.5309623523. The cubic root of 22349549 is about 281.6801573004.

The spelling of 22349549 in words is "twenty-two million, three hundred forty-nine thousand, five hundred forty-nine".