304640086 has 16 divisors (see below), whose sum is σ = 468977040. Its totient is φ = 148328320.

The previous prime is 304640081. The next prime is 304640087. The reversal of 304640086 is 680046403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304640081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44970 + ... + 51298.

It is an arithmetic number, because the mean of its divisors is an integer number (29311065).

Almost surely, 2^304640086 is an apocalyptic number.

304640086 is a deficient number, since it is larger than the sum of its proper divisors (164336954).

304640086 is a wasteful number, since it uses less digits than its factorization.

304640086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6959.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 304640086 is about 17453.9418470442. The cubic root of 304640086 is about 672.8666701337.

Adding to 304640086 its reverse (680046403), we get a palindrome (984686489).

The spelling of 304640086 in words is "three hundred four million, six hundred forty thousand, eighty-six".