204934243 has 8 divisors (see below), whose sum is σ = 206503200. Its totient is φ = 203370048.

The previous prime is 204934193. The next prime is 204934253. The reversal of 204934243 is 342439402.

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 204934243 - 2⁹ = 204933731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204934253) 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, 158343 + ... + 159631.

It is an arithmetic number, because the mean of its divisors is an integer number (25812900).

Almost surely, 2^204934243 is an apocalyptic number.

204934243 is a deficient number, since it is larger than the sum of its proper divisors (1568957).

204934243 is a wasteful number, since it uses less digits than its factorization.

204934243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 204934243 is about 14315.5245450525. The cubic root of 204934243 is about 589.5738021320.

The spelling of 204934243 in words is "two hundred four million, nine hundred thirty-four thousand, two hundred forty-three".