204304130 has 48 divisors (see below), whose sum is σ = 403551720. Its totient is φ = 74210304.

The previous prime is 204304117. The next prime is 204304153. The reversal of 204304130 is 31403402.

It can be written as a sum of positive squares in 12 ways, for example, as 10843849 + 193460281 = 3293^2 + 13909^2 .

It is a super-3 number, since 3×204304130³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 204304099 and 204304108.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 142256 + ... + 143684.

Almost surely, 2^204304130 is an apocalyptic number.

204304130 is a deficient number, since it is larger than the sum of its proper divisors (199247590).

204304130 is a wasteful number, since it uses less digits than its factorization.

204304130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 204304130 is about 14293.4995714835. The cubic root of 204304130 is about 588.9689259647.

Adding to 204304130 its reverse (31403402), we get a palindrome (235707532).

The spelling of 204304130 in words is "two hundred four million, three hundred four thousand, one hundred thirty".