442420023223042 has 4 divisors (see below), whose sum is σ = 663630034834566. Its totient is φ = 221210011611520.

The previous prime is 442420023222937. The next prime is 442420023223093. The reversal of 442420023223042 is 240322320024244.

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., 354105494571481 + 88314528651561 = 18817691^2 + 9397581^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442420023222989 and 442420023223007.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 110605005805759 + ... + 110605005805762.

Almost surely, 2^{442420023223042} is an apocalyptic number.

442420023223042 is a deficient number, since it is larger than the sum of its proper divisors (221210011611524).

442420023223042 is a wasteful number, since it uses less digits than its factorization.

442420023223042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221210011611523.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 442420023223042 its reverse (240322320024244), we get a palindrome (682742343247286).

The spelling of 442420023223042 in words is "four hundred forty-two trillion, four hundred twenty billion, twenty-three million, two hundred twenty-three thousand, forty-two".