42444054403 has 4 divisors (see below), whose sum is σ = 42725141008. Its totient is φ = 42162967800.

The previous prime is 42444054397. The next prime is 42444054421. The reversal of 42444054403 is 30445044424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42444054403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42444054473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140543076 + ... + 140543377.

It is an arithmetic number, because the mean of its divisors is an integer number (10681285252).

Almost surely, 2^42444054403 is an apocalyptic number.

42444054403 is a deficient number, since it is larger than the sum of its proper divisors (281086605).

42444054403 is a wasteful number, since it uses less digits than its factorization.

42444054403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281086604.

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

Adding to 42444054403 its reverse (30445044424), we get a palindrome (72889098827).

The spelling of 42444054403 in words is "forty-two billion, four hundred forty-four million, fifty-four thousand, four hundred three".