4021444443434 has 32 divisors (see below), whose sum is σ = 6590151308160. Its totient is φ = 1825262899200.

The previous prime is 4021444443377. The next prime is 4021444443437. The reversal of 4021444443434 is 4343444441204.

It is a junction number, because it is equal to n+sod(n) for n = 4021444443391 and 4021444443400.

It is not an unprimeable number, because it can be changed into a prime (4021444443437) 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, 43608827 + ... + 43700945.

It is an arithmetic number, because the mean of its divisors is an integer number (205942228380).

Almost surely, 2^{4021444443434} is an apocalyptic number.

4021444443434 is a deficient number, since it is larger than the sum of its proper divisors (2568706864726).

4021444443434 is a wasteful number, since it uses less digits than its factorization.

4021444443434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95006.

The product of its (nonzero) digits is 1179648, while the sum is 41.

Adding to 4021444443434 its reverse (4343444441204), we get a palindrome (8364888884638).

The spelling of 4021444443434 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty-three thousand, four hundred thirty-four".