22464643 has 2 divisors, whose sum is σ = 22464644. Its totient is φ = 22464642.

The previous prime is 22464641. The next prime is 22464683. The reversal of 22464643 is 34646422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22464643 - 2¹ = 22464641 is a prime.

Together with 22464641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22464641) 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, 11232321 + 11232322.

It is an arithmetic number, because the mean of its divisors is an integer number (11232322).

Almost surely, 2^22464643 is an apocalyptic number.

22464643 is a deficient number, since it is larger than the sum of its proper divisors (1).

22464643 is an equidigital number, since it uses as much as digits as its factorization.

22464643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 31.

The square root of 22464643 is about 4739.6880699050. The cubic root of 22464643 is about 282.1628546450.

It can be divided in two parts, 2246 and 4643, that added together give a square (6889 = 83²).

The spelling of 22464643 in words is "twenty-two million, four hundred sixty-four thousand, six hundred forty-three".