204042223 has 48 divisors (see below), whose sum is σ = 274475520. Its totient is φ = 149688000.

The previous prime is 204042221. The next prime is 204042233. The reversal of 204042223 is 322240402.

It is not a de Polignac number, because 204042223 - 2¹ = 204042221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204042223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204042221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1351198 + ... + 1351348.

It is an arithmetic number, because the mean of its divisors is an integer number (5718240).

Almost surely, 2^204042223 is an apocalyptic number.

204042223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204042223 is a deficient number, since it is larger than the sum of its proper divisors (70433297).

204042223 is a wasteful number, since it uses less digits than its factorization.

204042223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 204042223 is about 14284.3348812607. The cubic root of 204042223 is about 588.7171427579.

Adding to 204042223 its reverse (322240402), we get a palindrome (526282625).

The spelling of 204042223 in words is "two hundred four million, forty-two thousand, two hundred twenty-three".