4021444443442 has 16 divisors (see below), whose sum is σ = 6047395798752. Its totient is φ = 2005648265920.

The previous prime is 4021444443437. The next prime is 4021444443461. The reversal of 4021444443442 is 2443444441204.

It is a junction number, because it is equal to n+sod(n) for n = 4021444443395 and 4021444443404.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2728833 + ... + 3935659.

It is an arithmetic number, because the mean of its divisors is an integer number (377962237422).

Almost surely, 2^{4021444443442} is an apocalyptic number.

4021444443442 is a deficient number, since it is larger than the sum of its proper divisors (2025951355310).

4021444443442 is a wasteful number, since it uses less digits than its factorization.

4021444443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211033.

The product of its (nonzero) digits is 786432, while the sum is 40.

Adding to 4021444443442 its reverse (2443444441204), we get a palindrome (6464888884646).

The spelling of 4021444443442 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty-three thousand, four hundred forty-two".