204435073 has 4 divisors (see below), whose sum is σ = 204653268. Its totient is φ = 204216880.

The previous prime is 204435067. The next prime is 204435107. The reversal of 204435073 is 370534402.

204435073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42941809 + 161493264 = 6553^2 + 12708^2 .

It is a cyclic number.

It is not a de Polignac number, because 204435073 - 2²¹ = 202337921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204435043) 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, 107686 + ... + 109567.

It is an arithmetic number, because the mean of its divisors is an integer number (51163317).

Almost surely, 2^204435073 is an apocalyptic number.

It is an amenable number.

204435073 is a deficient number, since it is larger than the sum of its proper divisors (218195).

204435073 is an equidigital number, since it uses as much as digits as its factorization.

204435073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218194.

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

The square root of 204435073 is about 14298.0793465416. The cubic root of 204435073 is about 589.0947267952.

Adding to 204435073 its reverse (370534402), we get a palindrome (574969475).

The spelling of 204435073 in words is "two hundred four million, four hundred thirty-five thousand, seventy-three".