440081434768 has 20 divisors (see below), whose sum is σ = 852668065260. Its totient is φ = 220038063104.

The previous prime is 440081434721. The next prime is 440081434787. The reversal of 440081434768 is 867434180044.

It can be written as a sum of positive squares in 2 ways, for example, as 163775614864 + 276305819904 = 404692^2 + 525648^2 .

It is a super-2 number, since 2×440081434768² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2506596 + ... + 2676412.

It is an arithmetic number, because the mean of its divisors is an integer number (42633403263).

Almost surely, 2^440081434768 is an apocalyptic number.

It is an amenable number.

440081434768 is a deficient number, since it is larger than the sum of its proper divisors (412586630492).

440081434768 is a wasteful number, since it uses less digits than its factorization.

440081434768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331794 (or 331788 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 49.

The spelling of 440081434768 in words is "four hundred forty billion, eighty-one million, four hundred thirty-four thousand, seven hundred sixty-eight".