204440043 has 8 divisors (see below), whose sum is σ = 274093456. Its totient is φ = 135540000.

The previous prime is 204440023. The next prime is 204440051. The reversal of 204440043 is 340044402.

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

It is not a de Polignac number, because 204440043 - 2⁸ = 204439787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204440003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187708 + ... + 188793.

It is an arithmetic number, because the mean of its divisors is an integer number (34261682).

Almost surely, 2^204440043 is an apocalyptic number.

204440043 is a deficient number, since it is larger than the sum of its proper divisors (69653413).

204440043 is a wasteful number, since it uses less digits than its factorization.

204440043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376685.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 204440043 is about 14298.2531450524. The cubic root of 204440043 is about 589.0995005636.

Adding to 204440043 its reverse (340044402), we get a palindrome (544484445).

The spelling of 204440043 in words is "two hundred four million, four hundred forty thousand, forty-three".