204993043 has 4 divisors (see below), whose sum is σ = 213905808. Its totient is φ = 196080280.

The previous prime is 204993037. The next prime is 204993073. The reversal of 204993043 is 340399402.

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 204993043 - 2⁵ = 204993011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204993013) 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, 4456348 + ... + 4456393.

It is an arithmetic number, because the mean of its divisors is an integer number (53476452).

Almost surely, 2^204993043 is an apocalyptic number.

204993043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204993043 is a deficient number, since it is larger than the sum of its proper divisors (8912765).

204993043 is an equidigital number, since it uses as much as digits as its factorization.

204993043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912764.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 204993043 is about 14317.5781122367. The cubic root of 204993043 is about 589.6301838344.

The spelling of 204993043 in words is "two hundred four million, nine hundred ninety-three thousand, forty-three".