440021033344 has 128 divisors (see below), whose sum is σ = 910538496000. Its totient is φ = 211673978880.

The previous prime is 440021033317. The next prime is 440021033359. The reversal of 440021033344 is 443330120044.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196524577 + ... + 196526815.

It is an arithmetic number, because the mean of its divisors is an integer number (7113582000).

Almost surely, 2^440021033344 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 440021033344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455269248000).

440021033344 is an abundant number, since it is smaller than the sum of its proper divisors (470517462656).

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

440021033344 is a wasteful number, since it uses less digits than its factorization.

440021033344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856 (or 2844 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 440021033344 its reverse (443330120044), we get a palindrome (883351153388).

The spelling of 440021033344 in words is "four hundred forty billion, twenty-one million, thirty-three thousand, three hundred forty-four".