204204424 has 8 divisors (see below), whose sum is σ = 382883310. Its totient is φ = 102102208.

The previous prime is 204204421. The next prime is 204204431. The reversal of 204204424 is 424402402.

It can be written as a sum of positive squares in only one way, i.e., 204204100 + 324 = 14290^2 + 18^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 204204395 and 204204404.

It is not an unprimeable number, because it can be changed into a prime (204204421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762769 + ... + 12762784.

Almost surely, 2^204204424 is an apocalyptic number.

It is an amenable number.

204204424 is a deficient number, since it is larger than the sum of its proper divisors (178678886).

204204424 is a wasteful number, since it uses less digits than its factorization.

204204424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25525559 (or 25525555 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 204204424 is about 14290.0113365945. The cubic root of 204204424 is about 588.8730993960.

Adding to 204204424 its reverse (424402402), we get a palindrome (628606826).

The spelling of 204204424 in words is "two hundred four million, two hundred four thousand, four hundred twenty-four".