204354023 has 4 divisors (see below), whose sum is σ = 204512880. Its totient is φ = 204195168.

The previous prime is 204354013. The next prime is 204354043. The reversal of 204354023 is 320453402.

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 204354023 - 2⁶ = 204353959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204354023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204354013) 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, 77483 + ... + 80076.

It is an arithmetic number, because the mean of its divisors is an integer number (51128220).

Almost surely, 2^204354023 is an apocalyptic number.

204354023 is a deficient number, since it is larger than the sum of its proper divisors (158857).

204354023 is a wasteful number, since it uses less digits than its factorization.

204354023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158856.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 204354023 is about 14295.2447688034. The cubic root of 204354023 is about 589.0168659890.

The spelling of 204354023 in words is "two hundred four million, three hundred fifty-four thousand, twenty-three".