440041244413 has 2 divisors, whose sum is σ = 440041244414. Its totient is φ = 440041244412.

The previous prime is 440041244407. The next prime is 440041244449. The reversal of 440041244413 is 314442140044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382365379449 + 57675864964 = 618357^2 + 240158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440041244413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440041247413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220020622206 + 220020622207.

It is an arithmetic number, because the mean of its divisors is an integer number (220020622207).

Almost surely, 2^440041244413 is an apocalyptic number.

It is an amenable number.

440041244413 is a deficient number, since it is larger than the sum of its proper divisors (1).

440041244413 is an equidigital number, since it uses as much as digits as its factorization.

440041244413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 440041244413 its reverse (314442140044), we get a palindrome (754483384457).

The spelling of 440041244413 in words is "four hundred forty billion, forty-one million, two hundred forty-four thousand, four hundred thirteen".