204430316 has 24 divisors (see below), whose sum is σ = 360823680. Its totient is φ = 101342592.

The previous prime is 204430273. The next prime is 204430349. The reversal of 204430316 is 613034402.

It is a happy number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 204430291 and 204430300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336485 + ... + 337091.

It is an arithmetic number, because the mean of its divisors is an integer number (15034320).

Almost surely, 2^204430316 is an apocalyptic number.

It is an amenable number.

204430316 is a deficient number, since it is larger than the sum of its proper divisors (156393364).

204430316 is a wasteful number, since it uses less digits than its factorization.

204430316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 204430316 is about 14297.9129945597. The cubic root of 204430316 is about 589.0901575444.

Adding to 204430316 its reverse (613034402), we get a palindrome (817464718).

The spelling of 204430316 in words is "two hundred four million, four hundred thirty thousand, three hundred sixteen".