22417949 has 2 divisors, whose sum is σ = 22417950. Its totient is φ = 22417948.

The previous prime is 22417907. The next prime is 22417973. The reversal of 22417949 is 94971422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21325924 + 1092025 = 4618^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 22417949 - 2²⁰ = 21369373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22417979) 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 as a sum of consecutive naturals, namely, 11208974 + 11208975.

It is an arithmetic number, because the mean of its divisors is an integer number (11208975).

Almost surely, 2^22417949 is an apocalyptic number.

It is an amenable number.

22417949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22417949 is an equidigital number, since it uses as much as digits as its factorization.

22417949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 22417949 is about 4734.7596559910. The cubic root of 22417949 is about 281.9672220172.

The spelling of 22417949 in words is "twenty-two million, four hundred seventeen thousand, nine hundred forty-nine".