443254120042 has 4 divisors (see below), whose sum is σ = 664881180066. Its totient is φ = 221627060020.

The previous prime is 443254120037. The next prime is 443254120063. The reversal of 443254120042 is 240021452344.

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

It can be written as a sum of positive squares in only one way, i.e., 420823366681 + 22430753361 = 648709^2 + 149769^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 443254119986 and 443254120013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110813530009 + ... + 110813530012.

Almost surely, 2^443254120042 is an apocalyptic number.

443254120042 is a deficient number, since it is larger than the sum of its proper divisors (221627060024).

443254120042 is a wasteful number, since it uses less digits than its factorization.

443254120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221627060023.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 443254120042 its reverse (240021452344), we get a palindrome (683275572386).

The spelling of 443254120042 in words is "four hundred forty-three billion, two hundred fifty-four million, one hundred twenty thousand, forty-two".