4021444423441 has 8 divisors (see below), whose sum is σ = 4037382923904. Its totient is φ = 4005510831360.

The previous prime is 4021444423427. The next prime is 4021444423463. The reversal of 4021444423441 is 1443244441204.

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

It is a cyclic number.

It is not a de Polignac number, because 4021444423441 - 2²⁵ = 4021410869009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4021444423441.

It is not an unprimeable number, because it can be changed into a prime (4021444403441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 419121 + ... + 2866801.

It is an arithmetic number, because the mean of its divisors is an integer number (504672865488).

Almost surely, 2^{4021444423441} is an apocalyptic number.

It is an amenable number.

4021444423441 is a deficient number, since it is larger than the sum of its proper divisors (15938500463).

4021444423441 is a wasteful number, since it uses less digits than its factorization.

4021444423441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454191.

The product of its (nonzero) digits is 196608, while the sum is 37.

Adding to 4021444423441 its reverse (1443244441204), we get a palindrome (5464688864645).

The spelling of 4021444423441 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred twenty-three thousand, four hundred forty-one".