440433312440 has 32 divisors (see below), whose sum is σ = 1081063586160. Its totient is φ = 160157568000.

The previous prime is 440433312437. The next prime is 440433312499. The reversal of 440433312440 is 44213334044.

It is a junction number, because it is equal to n+sod(n) for n = 440433312397 and 440433312406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500491961 + ... + 500492840.

Almost surely, 2^440433312440 is an apocalyptic number.

440433312440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440433312440 is an abundant number, since it is smaller than the sum of its proper divisors (640630273720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440433312440 is a wasteful number, since it uses less digits than its factorization.

440433312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000984823 (or 1000984819 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 440433312440 its reverse (44213334044), we get a palindrome (484646646484).

The spelling of 440433312440 in words is "four hundred forty billion, four hundred thirty-three million, three hundred twelve thousand, four hundred forty".