204042423 has 8 divisors (see below), whose sum is σ = 292984048. Its totient is φ = 125564544.

The previous prime is 204042389. The next prime is 204042431. The reversal of 204042423 is 324240402.

204042423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 204042423 - 2¹³ = 204034231 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 204042423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204040423) 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, 2615890 + ... + 2615967.

It is an arithmetic number, because the mean of its divisors is an integer number (36623006).

Almost surely, 2^204042423 is an apocalyptic number.

204042423 is a deficient number, since it is larger than the sum of its proper divisors (88941625).

204042423 is a wasteful number, since it uses less digits than its factorization.

204042423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231873.

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

The square root of 204042423 is about 14284.3418819349. The cubic root of 204042423 is about 588.7173351092.

Adding to 204042423 its reverse (324240402), we get a palindrome (528282825).

The spelling of 204042423 in words is "two hundred four million, forty-two thousand, four hundred twenty-three".