4021443331409 has 8 divisors (see below), whose sum is σ = 4595951548608. Its totient is φ = 3446939192400.

The previous prime is 4021443331397. The next prime is 4021443331483. The reversal of 4021443331409 is 9041333441204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021443331409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4021443333409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1512839 + ... + 3214275.

It is an arithmetic number, because the mean of its divisors is an integer number (574493943576).

Almost surely, 2^{4021443331409} is an apocalyptic number.

It is an amenable number.

4021443331409 is a deficient number, since it is larger than the sum of its proper divisors (574508217199).

4021443331409 is a wasteful number, since it uses less digits than its factorization.

4021443331409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039095.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 4021443331409 in words is "four trillion, twenty-one billion, four hundred forty-three million, three hundred thirty-one thousand, four hundred nine".