4444020420443 has 4 divisors (see below), whose sum is σ = 4444729314960. Its totient is φ = 4443311525928.

The previous prime is 4444020420439. The next prime is 4444020420451. The reversal of 4444020420443 is 3440240204444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4444020420443 - 2² = 4444020420439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444020420403) 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 3 ways as a sum of consecutive naturals, for example, 354437855 + ... + 354450392.

It is an arithmetic number, because the mean of its divisors is an integer number (1111182328740).

Almost surely, 2^{4444020420443} is an apocalyptic number.

4444020420443 is a deficient number, since it is larger than the sum of its proper divisors (708894517).

4444020420443 is an equidigital number, since it uses as much as digits as its factorization.

4444020420443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708894516.

The product of its (nonzero) digits is 196608, while the sum is 35.

Adding to 4444020420443 its reverse (3440240204444), we get a palindrome (7884260624887).

The spelling of 4444020420443 in words is "four trillion, four hundred forty-four billion, twenty million, four hundred twenty thousand, four hundred forty-three".