440484040819 has 2 divisors, whose sum is σ = 440484040820. Its totient is φ = 440484040818.

The previous prime is 440484040807. The next prime is 440484040891. The reversal of 440484040819 is 918040484044.

Together with next prime (440484040891) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440484040819 - 2⁹ = 440484040307 is a prime.

It is a super-2 number, since 2×440484040819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (440484050819) 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, 220242020409 + 220242020410.

It is an arithmetic number, because the mean of its divisors is an integer number (220242020410).

Almost surely, 2^440484040819 is an apocalyptic number.

440484040819 is a deficient number, since it is larger than the sum of its proper divisors (1).

440484040819 is an equidigital number, since it uses as much as digits as its factorization.

440484040819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 589824, while the sum is 46.

The spelling of 440484040819 in words is "four hundred forty billion, four hundred eighty-four million, forty thousand, eight hundred nineteen".