42443004445 has 16 divisors (see below), whose sum is σ = 52850109312. Its totient is φ = 32697645120.

The previous prime is 42443004427. The next prime is 42443004449. The reversal of 42443004445 is 54440034424.

It is a de Polignac number, because none of the positive numbers 2^k-42443004445 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 42443004445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42443004449) 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, 1374942 + ... + 1405471.

It is an arithmetic number, because the mean of its divisors is an integer number (3303131832).

Almost surely, 2^42443004445 is an apocalyptic number.

It is an amenable number.

42443004445 is a deficient number, since it is larger than the sum of its proper divisors (10407104867).

42443004445 is a wasteful number, since it uses less digits than its factorization.

42443004445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780532.

The product of its (nonzero) digits is 122880, while the sum is 34.

Adding to 42443004445 its reverse (54440034424), we get a palindrome (96883038869).

The spelling of 42443004445 in words is "forty-two billion, four hundred forty-three million, four thousand, four hundred forty-five".