204642224 has 20 divisors (see below), whose sum is σ = 413733936. Its totient is φ = 97872192.

The previous prime is 204642223. The next prime is 204642233. The reversal of 204642224 is 422246402.

It is a happy number.

204642224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 204642193 and 204642202.

It is not an unprimeable number, because it can be changed into a prime (204642223) 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 in 3 ways as a sum of consecutive naturals, for example, 277679 + ... + 278414.

Almost surely, 2^204642224 is an apocalyptic number.

It is an amenable number.

204642224 is an abundant number, since it is smaller than the sum of its proper divisors (209091712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204642224 is a wasteful number, since it uses less digits than its factorization.

204642224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556124 (or 556118 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 204642224 is about 14305.3215273198. The cubic root of 204642224 is about 589.2936332509.

Adding to 204642224 its reverse (422246402), we get a palindrome (626888626).

The spelling of 204642224 in words is "two hundred four million, six hundred forty-two thousand, two hundred twenty-four".