4021444440032 has 96 divisors (see below), whose sum is σ = 8875155290400. Its totient is φ = 1782478061568.

The previous prime is 4021444440019. The next prime is 4021444440037. The reversal of 4021444440032 is 2300444441204.

It is a super-2 number, since 2×4021444440032² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444440037) 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 in 15 ways as a sum of consecutive naturals, for example, 663644 + ... + 2912612.

It is an arithmetic number, because the mean of its divisors is an integer number (92449534275).

Almost surely, 2^{4021444440032} 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 4021444440032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4437577645200).

4021444440032 is an abundant number, since it is smaller than the sum of its proper divisors (4853710850368).

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

4021444440032 is a wasteful number, since it uses less digits than its factorization.

4021444440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249188 (or 2249180 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 4021444440032 its reverse (2300444441204), we get a palindrome (6321888881236).

The spelling of 4021444440032 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty thousand, thirty-two".