22726349 has 2 divisors, whose sum is σ = 22726350. Its totient is φ = 22726348.

The previous prime is 22726309. The next prime is 22726351. The reversal of 22726349 is 94362722.

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., 20884900 + 1841449 = 4570^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 22726349 - 2¹² = 22722253 is a prime.

It is a Sophie Germain prime.

Together with 22726351, it forms a pair of twin primes.

It is a Chen 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 (22726309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11363174 + 11363175.

It is an arithmetic number, because the mean of its divisors is an integer number (11363175).

Almost surely, 2^22726349 is an apocalyptic number.

It is an amenable number.

22726349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22726349 is an equidigital number, since it uses as much as digits as its factorization.

22726349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 22726349 is about 4767.2160639098. The cubic root of 22726349 is about 283.2543298377.

The spelling of 22726349 in words is "twenty-two million, seven hundred twenty-six thousand, three hundred forty-nine".