22340249 has 2 divisors, whose sum is σ = 22340250. Its totient is φ = 22340248.

The previous prime is 22340161. The next prime is 22340251. The reversal of 22340249 is 94204322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15264649 + 7075600 = 3907^2 + 2660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22340249 is a prime.

It is a Sophie Germain prime.

Together with 22340251, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22340849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11170124 + 11170125.

It is an arithmetic number, because the mean of its divisors is an integer number (11170125).

Almost surely, 2^22340249 is an apocalyptic number.

It is an amenable number.

22340249 is a deficient number, since it is larger than the sum of its proper divisors (1).

22340249 is an equidigital number, since it uses as much as digits as its factorization.

22340249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 22340249 is about 4726.5472598928. The cubic root of 22340249 is about 281.6410813605.

The spelling of 22340249 in words is "twenty-two million, three hundred forty thousand, two hundred forty-nine".