204243263 has 8 divisors (see below), whose sum is σ = 239114400. Its totient is φ = 170795520.

The previous prime is 204243257. The next prime is 204243301. The reversal of 204243263 is 362342402.

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

It is not a de Polignac number, because 204243263 - 2⁶ = 204243199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204243233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355538 + ... + 356111.

It is an arithmetic number, because the mean of its divisors is an integer number (29889300).

Almost surely, 2^204243263 is an apocalyptic number.

204243263 is a deficient number, since it is larger than the sum of its proper divisors (34871137).

204243263 is an equidigital number, since it uses as much as digits as its factorization.

204243263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711697.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 204243263 is about 14291.3702282181. The cubic root of 204243263 is about 588.9104309288.

Adding to 204243263 its reverse (362342402), we get a palindrome (566585665).

The spelling of 204243263 in words is "two hundred four million, two hundred forty-three thousand, two hundred sixty-three".