22459649 has 2 divisors, whose sum is σ = 22459650. Its totient is φ = 22459648.

The previous prime is 22459637. The next prime is 22459699. The reversal of 22459649 is 94695422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22137025 + 322624 = 4705^2 + 568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22459649 is a prime.

It is not a weakly prime, because it can be changed into another prime (22459699) 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, 11229824 + 11229825.

It is an arithmetic number, because the mean of its divisors is an integer number (11229825).

Almost surely, 2^22459649 is an apocalyptic number.

It is an amenable number.

22459649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22459649 is an equidigital number, since it uses as much as digits as its factorization.

22459649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 22459649 is about 4739.1612127042. The cubic root of 22459649 is about 282.1419443680.

The spelling of 22459649 in words is "twenty-two million, four hundred fifty-nine thousand, six hundred forty-nine".