440224424309 has 2 divisors, whose sum is σ = 440224424310. Its totient is φ = 440224424308.

The previous prime is 440224424197. The next prime is 440224424323. The reversal of 440224424309 is 903424422044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370820102500 + 69404321809 = 608950^2 + 263447^2 .

It is a cyclic number.

It is not a de Polignac number, because 440224424309 - 2⁸ = 440224424053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440224420309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220112212154 + 220112212155.

It is an arithmetic number, because the mean of its divisors is an integer number (220112212155).

Almost surely, 2^440224424309 is an apocalyptic number.

It is an amenable number.

440224424309 is a deficient number, since it is larger than the sum of its proper divisors (1).

440224424309 is an equidigital number, since it uses as much as digits as its factorization.

440224424309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 440224424309 in words is "four hundred forty billion, two hundred twenty-four million, four hundred twenty-four thousand, three hundred nine".