204431343 has 4 divisors (see below), whose sum is σ = 272575128. Its totient is φ = 136287560.

The previous prime is 204431333. The next prime is 204431363. The reversal of 204431343 is 343134402.

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 204431343 - 2¹³ = 204423151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204431303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34071888 + ... + 34071893.

It is an arithmetic number, because the mean of its divisors is an integer number (68143782).

Almost surely, 2^204431343 is an apocalyptic number.

204431343 is a deficient number, since it is larger than the sum of its proper divisors (68143785).

204431343 is an equidigital number, since it uses as much as digits as its factorization.

204431343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68143784.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 204431343 is about 14297.9489088470. The cubic root of 204431343 is about 589.0911440168.

Adding to 204431343 its reverse (343134402), we get a palindrome (547565745).

The spelling of 204431343 in words is "two hundred four million, four hundred thirty-one thousand, three hundred forty-three".