22238743 has 2 divisors, whose sum is σ = 22238744. Its totient is φ = 22238742.

The previous prime is 22238731. The next prime is 22238779. The reversal of 22238743 is 34783222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22238743 - 2⁹ = 22238231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22238143) 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, 11119371 + 11119372.

It is an arithmetic number, because the mean of its divisors is an integer number (11119372).

Almost surely, 2^22238743 is an apocalyptic number.

22238743 is a deficient number, since it is larger than the sum of its proper divisors (1).

22238743 is an equidigital number, since it uses as much as digits as its factorization.

22238743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 22238743 is about 4715.7971754519. The cubic root of 22238743 is about 281.2138753273.

The spelling of 22238743 in words is "twenty-two million, two hundred thirty-eight thousand, seven hundred forty-three".