304405730 has 32 divisors (see below), whose sum is σ = 564989040. Its totient is φ = 118010880.

The previous prime is 304405727. The next prime is 304405733. The reversal of 304405730 is 37504403.

304405730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (304405727) and next prime (304405733).

It can be written as a sum of positive squares in 8 ways, for example, as 7921 + 304397809 = 89^2 + 17447^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 304405730.

It is not an unprimeable number, because it can be changed into a prime (304405733) 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 15 ways as a sum of consecutive naturals, for example, 62006 + ... + 66734.

Almost surely, 2^304405730 is an apocalyptic number.

304405730 is a deficient number, since it is larger than the sum of its proper divisors (260583310).

304405730 is a wasteful number, since it uses less digits than its factorization.

304405730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 304405730 is about 17447.2270003001. The cubic root of 304405730 is about 672.6940830904.

The spelling of 304405730 in words is "three hundred four million, four hundred five thousand, seven hundred thirty".