22744661 has 2 divisors, whose sum is σ = 22744662. Its totient is φ = 22744660.

The previous prime is 22744651. The next prime is 22744681. The reversal of 22744661 is 16644722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14938225 + 7806436 = 3865^2 + 2794^2 .

It is a cyclic number.

It is not a de Polignac number, because 22744661 - 2⁶ = 22744597 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 (22744621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11372330 + 11372331.

It is an arithmetic number, because the mean of its divisors is an integer number (11372331).

Almost surely, 2^22744661 is an apocalyptic number.

It is an amenable number.

22744661 is a deficient number, since it is larger than the sum of its proper divisors (1).

22744661 is an equidigital number, since it uses as much as digits as its factorization.

22744661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 22744661 is about 4769.1362949700. The cubic root of 22744661 is about 283.3303878202.

The spelling of 22744661 in words is "twenty-two million, seven hundred forty-four thousand, six hundred sixty-one".