20044444204042 has 4 divisors (see below), whose sum is σ = 30066666306066. Its totient is φ = 10022222102020.

The previous prime is 20044444204033. The next prime is 20044444204063. The reversal of 20044444204042 is 24040244444002.

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., 18412414958961 + 1632029245081 = 4290969^2 + 1277509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20044444203989 and 20044444204007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011111051009 + ... + 5011111051012.

Almost surely, 2^{20044444204042} is an apocalyptic number.

20044444204042 is a deficient number, since it is larger than the sum of its proper divisors (10022222102024).

20044444204042 is a wasteful number, since it uses less digits than its factorization.

20044444204042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022222102023.

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

Adding to 20044444204042 its reverse (24040244444002), we get a palindrome (44084688648044).

The spelling of 20044444204042 in words is "twenty trillion, forty-four billion, four hundred forty-four million, two hundred four thousand, forty-two".