440244043297 has 2 divisors, whose sum is σ = 440244043298. Its totient is φ = 440244043296.

The previous prime is 440244043279. The next prime is 440244043331. The reversal of 440244043297 is 792340442044.

Together with previous prime (440244043279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227456501776 + 212787541521 = 476924^2 + 461289^2 .

It is a cyclic number.

It is not a de Polignac number, because 440244043297 - 2³⁵ = 405884304929 is a prime.

It is not a weakly prime, because it can be changed into another prime (440244043097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220122021648 + 220122021649.

It is an arithmetic number, because the mean of its divisors is an integer number (220122021649).

Almost surely, 2^440244043297 is an apocalyptic number.

It is an amenable number.

440244043297 is a deficient number, since it is larger than the sum of its proper divisors (1).

440244043297 is an equidigital number, since it uses as much as digits as its factorization.

440244043297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 440244043297 in words is "four hundred forty billion, two hundred forty-four million, forty-three thousand, two hundred ninety-seven".