204312443 has 8 divisors (see below), whose sum is σ = 217432512. Its totient is φ = 191314816.

The previous prime is 204312391. The next prime is 204312463. The reversal of 204312443 is 344213402.

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

It is a cyclic number.

It is not a de Polignac number, because 204312443 - 2⁶ = 204312379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204312463) 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 7 ways as a sum of consecutive naturals, for example, 27155 + ... + 33852.

It is an arithmetic number, because the mean of its divisors is an integer number (27179064).

Almost surely, 2^204312443 is an apocalyptic number.

204312443 is a deficient number, since it is larger than the sum of its proper divisors (13120069).

204312443 is a wasteful number, since it uses less digits than its factorization.

204312443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61221.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 204312443 is about 14293.7903650501. The cubic root of 204312443 is about 588.9769141085.

Adding to 204312443 its reverse (344213402), we get a palindrome (548525845).

The spelling of 204312443 in words is "two hundred four million, three hundred twelve thousand, four hundred forty-three".