4021444134432 has 72 divisors (see below), whose sum is σ = 11443996929456. Its totient is φ = 1339541870976.

The previous prime is 4021444134413. The next prime is 4021444134437. The reversal of 4021444134432 is 2344314441204.

4021444134432 is a `hidden beast` number, since 4 + 0 + 214 + 4 + 4 + 1 + 3 + 4 + 432 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (4021444134437) 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 11 ways as a sum of consecutive naturals, for example, 4481578 + ... + 5303529.

It is an arithmetic number, because the mean of its divisors is an integer number (158944401798).

Almost surely, 2^{4021444134432} is an apocalyptic number.

It is an amenable number.

4021444134432 is an abundant number, since it is smaller than the sum of its proper divisors (7422552795024).

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

4021444134432 is a wasteful number, since it uses less digits than its factorization.

4021444134432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9786550 (or 9786539 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 4021444134432 its reverse (2344314441204), we get a palindrome (6365758575636).

The spelling of 4021444134432 in words is "four trillion, twenty-one billion, four hundred forty-four million, one hundred thirty-four thousand, four hundred thirty-two".