4445424443 has 4 divisors (see below), whose sum is σ = 4520770680. Its totient is φ = 4370078208.

The previous prime is 4445424437. The next prime is 4445424551. The reversal of 4445424443 is 3444245444.

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 4445424443 - 2⁸ = 4445424187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4445424397 and 4445424406.

It is not an unprimeable number, because it can be changed into a prime (4445424143) 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, 37673030 + ... + 37673147.

It is an arithmetic number, because the mean of its divisors is an integer number (1130192670).

Almost surely, 2^4445424443 is an apocalyptic number.

4445424443 is a deficient number, since it is larger than the sum of its proper divisors (75346237).

4445424443 is an equidigital number, since it uses as much as digits as its factorization.

4445424443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75346236.

The product of its digits is 491520, while the sum is 38.

The square root of 4445424443 is about 66674.0162507104. The cubic root of 4445424443 is about 1644.2622182196.

Adding to 4445424443 its reverse (3444245444), we get a palindrome (7889669887).

The spelling of 4445424443 in words is "four billion, four hundred forty-five million, four hundred twenty-four thousand, four hundred forty-three".