204304530 has 32 divisors (see below), whose sum is σ = 516139200. Its totient is φ = 51613632.

The previous prime is 204304501. The next prime is 204304531. The reversal of 204304530 is 35403402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 204304497 and 204304506.

It is not an unprimeable number, because it can be changed into a prime (204304531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178645 + ... + 179784.

It is an arithmetic number, because the mean of its divisors is an integer number (16129350).

Almost surely, 2^204304530 is an apocalyptic number.

204304530 is an abundant number, since it is smaller than the sum of its proper divisors (311834670).

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

204304530 is a wasteful number, since it uses less digits than its factorization.

204304530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358458.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 204304530 is about 14293.5135638513. The cubic root of 204304530 is about 588.9693103384.

Adding to 204304530 its reverse (35403402), we get a palindrome (239707932).

The spelling of 204304530 in words is "two hundred four million, three hundred four thousand, five hundred thirty".