244230391 has 2 divisors, whose sum is σ = 244230392. Its totient is φ = 244230390.

The previous prime is 244230379. The next prime is 244230433. The reversal of 244230391 is 193032442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 244230391 - 2⁷ = 244230263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244230331) 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, 122115195 + 122115196.

It is an arithmetic number, because the mean of its divisors is an integer number (122115196).

Almost surely, 2^244230391 is an apocalyptic number.

244230391 is a deficient number, since it is larger than the sum of its proper divisors (1).

244230391 is an equidigital number, since it uses as much as digits as its factorization.

244230391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 244230391 is about 15627.8722480061. The cubic root of 244230391 is about 625.0765909337.

The spelling of 244230391 in words is "two hundred forty-four million, two hundred thirty thousand, three hundred ninety-one".