22450949 has 2 divisors, whose sum is σ = 22450950. Its totient is φ = 22450948.

The previous prime is 22450907. The next prime is 22450957. The reversal of 22450949 is 94905422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21436900 + 1014049 = 4630^2 + 1007^2 .

It is a cyclic number.

It is not a de Polignac number, because 22450949 - 2²⁰ = 21402373 is a prime.

It is a super-2 number, since 2×22450949² = 1008090222001202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22450969) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11225474 + 11225475.

It is an arithmetic number, because the mean of its divisors is an integer number (11225475).

Almost surely, 2^22450949 is an apocalyptic number.

It is an amenable number.

22450949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22450949 is an equidigital number, since it uses as much as digits as its factorization.

22450949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 22450949 is about 4738.2432398517. The cubic root of 22450949 is about 282.1055093681.

The spelling of 22450949 in words is "twenty-two million, four hundred fifty thousand, nine hundred forty-nine".