22466813 has 2 divisors, whose sum is σ = 22466814. Its totient is φ = 22466812.

The previous prime is 22466783. The next prime is 22466819. The reversal of 22466813 is 31866422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19518724 + 2948089 = 4418^2 + 1717^2 .

It is a cyclic number.

It is not a de Polignac number, because 22466813 - 2⁸ = 22466557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22466813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22466819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11233406 + 11233407.

It is an arithmetic number, because the mean of its divisors is an integer number (11233407).

Almost surely, 2^22466813 is an apocalyptic number.

It is an amenable number.

22466813 is a deficient number, since it is larger than the sum of its proper divisors (1).

22466813 is an equidigital number, since it uses as much as digits as its factorization.

22466813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 22466813 is about 4739.9169823954. The cubic root of 22466813 is about 282.1719396426.

The spelling of 22466813 in words is "twenty-two million, four hundred sixty-six thousand, eight hundred thirteen".