204731330 has 16 divisors (see below), whose sum is σ = 368782200. Its totient is φ = 81833472.

The previous prime is 204731309. The next prime is 204731333. The reversal of 204731330 is 33137402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 140683321 + 64048009 = 11861^2 + 8003^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204731296 and 204731305.

It is not an unprimeable number, because it can be changed into a prime (204731333) 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, 8882 + ... + 22098.

Almost surely, 2^204731330 is an apocalyptic number.

204731330 is a deficient number, since it is larger than the sum of its proper divisors (164050870).

204731330 is a wasteful number, since it uses less digits than its factorization.

204731330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14773.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 204731330 is about 14308.4356237850. The cubic root of 204731330 is about 589.3791515732.

Adding to 204731330 its reverse (33137402), we get a palindrome (237868732).

The spelling of 204731330 in words is "two hundred four million, seven hundred thirty-one thousand, three hundred thirty".