442444042042 has 4 divisors (see below), whose sum is σ = 663666063066. Its totient is φ = 221222021020.

The previous prime is 442444042031. The next prime is 442444042123. The reversal of 442444042042 is 240240444244.

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., 274639931721 + 167804110321 = 524061^2 + 409639^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442444041989 and 442444042007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611010509 + ... + 110611010512.

Almost surely, 2^442444042042 is an apocalyptic number.

442444042042 is a deficient number, since it is larger than the sum of its proper divisors (221222021024).

442444042042 is a wasteful number, since it uses less digits than its factorization.

442444042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221222021023.

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 442444042042 its reverse (240240444244), we get a palindrome (682684486286).

The spelling of 442444042042 in words is "four hundred forty-two billion, four hundred forty-four million, forty-two thousand, forty-two".