22246391 has 2 divisors, whose sum is σ = 22246392. Its totient is φ = 22246390.

The previous prime is 22246373. The next prime is 22246417. The reversal of 22246391 is 19364222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22246391 - 2⁶ = 22246327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22246331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11123195 + 11123196.

It is an arithmetic number, because the mean of its divisors is an integer number (11123196).

Almost surely, 2^22246391 is an apocalyptic number.

22246391 is a deficient number, since it is larger than the sum of its proper divisors (1).

22246391 is an equidigital number, since it uses as much as digits as its factorization.

22246391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 22246391 is about 4716.6079972794. The cubic root of 22246391 is about 281.2461085223.

The spelling of 22246391 in words is "twenty-two million, two hundred forty-six thousand, three hundred ninety-one".