442412044042 has 4 divisors (see below), whose sum is σ = 663618066066. Its totient is φ = 221206022020.

The previous prime is 442412044031. The next prime is 442412044057. The reversal of 442412044042 is 240440214244.

It is a happy number.

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., 332699393601 + 109712650441 = 576801^2 + 331229^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442412043995 and 442412044013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110603011009 + ... + 110603011012.

Almost surely, 2^442412044042 is an apocalyptic number.

442412044042 is a deficient number, since it is larger than the sum of its proper divisors (221206022024).

442412044042 is a wasteful number, since it uses less digits than its factorization.

442412044042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221206022023.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 442412044042 its reverse (240440214244), we get a palindrome (682852258286).

The spelling of 442412044042 in words is "four hundred forty-two billion, four hundred twelve million, forty-four thousand, forty-two".