204208085442 has 8 divisors (see below), whose sum is σ = 408416170896. Its totient is φ = 68069361812.

The previous prime is 204208085441. The next prime is 204208085443. The reversal of 204208085442 is 244580802402.

It is an interprime number because it is at equal distance from previous prime (204208085441) and next prime (204208085443).

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

204208085442 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 204208085442.

It is not an unprimeable number, because it can be changed into a prime (204208085441) by changing a digit.

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, 17017340448 + ... + 17017340459.

It is an arithmetic number, because the mean of its divisors is an integer number (51052021362).

Almost surely, 2^204208085442 is an apocalyptic number.

204208085442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204208085442 is a wasteful number, since it uses less digits than its factorization.

204208085442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34034680912.

The product of its (nonzero) digits is 163840, while the sum is 39.

Adding to 204208085442 its reverse (244580802402), we get a palindrome (448788887844).

The spelling of 204208085442 in words is "two hundred four billion, two hundred eight million, eighty-five thousand, four hundred forty-two".