204244442399 has 4 divisors (see below), whose sum is σ = 204362984136. Its totient is φ = 204125900664.

The previous prime is 204244442393. The next prime is 204244442417. The reversal of 204244442399 is 993244442402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204244442399 - 2¹² = 204244438303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204244442393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59268284 + ... + 59271729.

It is an arithmetic number, because the mean of its divisors is an integer number (51090746034).

Almost surely, 2^204244442399 is an apocalyptic number.

204244442399 is a deficient number, since it is larger than the sum of its proper divisors (118541737).

204244442399 is a wasteful number, since it uses less digits than its factorization.

204244442399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118541736.

The product of its (nonzero) digits is 1990656, while the sum is 47.

The spelling of 204244442399 in words is "two hundred four billion, two hundred forty-four million, four hundred forty-two thousand, three hundred ninety-nine".