440243220432 has 120 divisors (see below), whose sum is σ = 1189737914400. Its totient is φ = 140267604224.

The previous prime is 440243220419. The next prime is 440243220449. The reversal of 440243220432 is 234022342044.

It is a self number, because there is not a number n which added to its sum of digits gives 440243220432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41104294 + ... + 41115002.

It is an arithmetic number, because the mean of its divisors is an integer number (9914482620).

Almost surely, 2^440243220432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440243220432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594868957200).

440243220432 is an abundant number, since it is smaller than the sum of its proper divisors (749494693968).

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

440243220432 is a wasteful number, since it uses less digits than its factorization.

440243220432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12385 (or 12356 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 440243220432 its reverse (234022342044), we get a palindrome (674265562476).

It can be divided in two parts, 440243 and 220432, that added together give a triangular number (660675 = T₁₁₄₉).

The spelling of 440243220432 in words is "four hundred forty billion, two hundred forty-three million, two hundred twenty thousand, four hundred thirty-two".