22044949 has 2 divisors, whose sum is σ = 22044950. Its totient is φ = 22044948.

The previous prime is 22044947. The next prime is 22044961. The reversal of 22044949 is 94944022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15944049 + 6100900 = 3993^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 22044949 - 2¹ = 22044947 is a prime.

Together with 22044947, 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 (22044941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11022474 + 11022475.

It is an arithmetic number, because the mean of its divisors is an integer number (11022475).

Almost surely, 2^22044949 is an apocalyptic number.

It is an amenable number.

22044949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22044949 is an equidigital number, since it uses as much as digits as its factorization.

22044949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 22044949 is about 4695.2048943576. The cubic root of 22044949 is about 280.3946348628.

The spelling of 22044949 in words is "twenty-two million, forty-four thousand, nine hundred forty-nine".