204240246443 has 4 divisors (see below), whose sum is σ = 204246615048. Its totient is φ = 204233877840.

The previous prime is 204240246403. The next prime is 204240246523. The reversal of 204240246443 is 344642042402.

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 204240246443 - 2⁸ = 204240246187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204240246403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3135953 + ... + 3200418.

It is an arithmetic number, because the mean of its divisors is an integer number (51061653762).

Almost surely, 2^204240246443 is an apocalyptic number.

204240246443 is a deficient number, since it is larger than the sum of its proper divisors (6368605).

204240246443 is an equidigital number, since it uses as much as digits as its factorization.

204240246443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6368604.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 204240246443 its reverse (344642042402), we get a palindrome (548882288845).

The spelling of 204240246443 in words is "two hundred four billion, two hundred forty million, two hundred forty-six thousand, four hundred forty-three".