304502130 has 48 divisors (see below), whose sum is σ = 838280664. Its totient is φ = 76423680.

The previous prime is 304502111. The next prime is 304502131. The reversal of 304502130 is 31205403.

304502130 is a `hidden beast` number, since 3 + 0 + 450 + 213 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 198556281 + 105945849 = 14091^2 + 10293^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (304502131) 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 23 ways as a sum of consecutive naturals, for example, 97981 + ... + 101040.

Almost surely, 2^304502130 is an apocalyptic number.

304502130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

304502130 is an abundant number, since it is smaller than the sum of its proper divisors (533778534).

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

304502130 is a wasteful number, since it uses less digits than its factorization.

304502130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199051 (or 199048 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 304502130 is about 17449.9893982776. The cubic root of 304502130 is about 672.7650857677.

Adding to 304502130 its reverse (31205403), we get a palindrome (335707533).

The spelling of 304502130 in words is "three hundred four million, five hundred two thousand, one hundred thirty".