204022400042 has 8 divisors (see below), whose sum is σ = 308841248100. Its totient is φ = 101075317344.

The previous prime is 204022399993. The next prime is 204022400051. The reversal of 204022400042 is 240004220402.

It can be written as a sum of positive squares in 2 ways, for example, as 195274726201 + 8747673841 = 441899^2 + 93529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 204022399987 and 204022400023.

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 in 3 ways as a sum of consecutive naturals, for example, 467941067 + ... + 467941502.

Almost surely, 2^204022400042 is an apocalyptic number.

204022400042 is a deficient number, since it is larger than the sum of its proper divisors (104818848058).

204022400042 is a wasteful number, since it uses less digits than its factorization.

204022400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935882680.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 204022400042 its reverse (240004220402), we get a palindrome (444026620444).

The spelling of 204022400042 in words is "two hundred four billion, twenty-two million, four hundred thousand, forty-two".