22446649 has 2 divisors, whose sum is σ = 22446650. Its totient is φ = 22446648.

The previous prime is 22446629. The next prime is 22446653. The reversal of 22446649 is 94664422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19079424 + 3367225 = 4368^2 + 1835^2 .

It is a cyclic number.

It is not a de Polignac number, because 22446649 - 2¹³ = 22438457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22446629) 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, 11223324 + 11223325.

It is an arithmetic number, because the mean of its divisors is an integer number (11223325).

Almost surely, 2^22446649 is an apocalyptic number.

It is an amenable number.

22446649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22446649 is an equidigital number, since it uses as much as digits as its factorization.

22446649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 22446649 is about 4737.7894634523. The cubic root of 22446649 is about 282.0874977888.

The spelling of 22446649 in words is "twenty-two million, four hundred forty-six thousand, six hundred forty-nine".