440030243543257 has 2 divisors, whose sum is σ = 440030243543258. Its totient is φ = 440030243543256.

The previous prime is 440030243543243. The next prime is 440030243543327. The reversal of 440030243543257 is 752345342030044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347835219416281 + 92195024126976 = 18650341^2 + 9601824^2 .

It is a cyclic number.

It is not a de Polignac number, because 440030243543257 - 2³¹ = 440028096059609 is a prime.

It is not a weakly prime, because it can be changed into another prime (440030243543857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220015121771628 + 220015121771629.

It is an arithmetic number, because the mean of its divisors is an integer number (220015121771629).

Almost surely, 2^{440030243543257} is an apocalyptic number.

It is an amenable number.

440030243543257 is a deficient number, since it is larger than the sum of its proper divisors (1).

440030243543257 is an equidigital number, since it uses as much as digits as its factorization.

440030243543257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 46.

The spelling of 440030243543257 in words is "four hundred forty trillion, thirty billion, two hundred forty-three million, five hundred forty-three thousand, two hundred fifty-seven".