22438567 has 2 divisors, whose sum is σ = 22438568. Its totient is φ = 22438566.

The previous prime is 22438553. The next prime is 22438571. The reversal of 22438567 is 76583422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22438567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22438067) 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, 11219283 + 11219284.

It is an arithmetic number, because the mean of its divisors is an integer number (11219284).

Almost surely, 2^22438567 is an apocalyptic number.

22438567 is a deficient number, since it is larger than the sum of its proper divisors (1).

22438567 is an equidigital number, since it uses as much as digits as its factorization.

22438567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 22438567 is about 4736.9364572474. The cubic root of 22438567 is about 282.0536381715.

It can be divided in two parts, 22438 and 567, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 22438567 in words is "twenty-two million, four hundred thirty-eight thousand, five hundred sixty-seven".