204570343 has 4 divisors (see below), whose sum is σ = 204637720. Its totient is φ = 204502968.

The previous prime is 204570337. The next prime is 204570347. The reversal of 204570343 is 343075402.

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 204570343 - 2⁹ = 204569831 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 (204570347) 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 3 ways as a sum of consecutive naturals, for example, 28908 + ... + 35281.

It is an arithmetic number, because the mean of its divisors is an integer number (51159430).

Almost surely, 2^204570343 is an apocalyptic number.

204570343 is a deficient number, since it is larger than the sum of its proper divisors (67377).

204570343 is an equidigital number, since it uses as much as digits as its factorization.

204570343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67376.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 204570343 is about 14302.8089199290. The cubic root of 204570343 is about 589.2246283060.

The spelling of 204570343 in words is "two hundred four million, five hundred seventy thousand, three hundred forty-three".