440023231247 has 2 divisors, whose sum is σ = 440023231248. Its totient is φ = 440023231246.

The previous prime is 440023231217. The next prime is 440023231391. The reversal of 440023231247 is 742132320044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440023231247 - 2⁶ = 440023231183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440023231217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220011615623 + 220011615624.

It is an arithmetic number, because the mean of its divisors is an integer number (220011615624).

Almost surely, 2^440023231247 is an apocalyptic number.

440023231247 is a deficient number, since it is larger than the sum of its proper divisors (1).

440023231247 is an equidigital number, since it uses as much as digits as its factorization.

440023231247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 32.

The spelling of 440023231247 in words is "four hundred forty billion, twenty-three million, two hundred thirty-one thousand, two hundred forty-seven".