304309478 has 16 divisors (see below), whose sum is σ = 499821840. Its totient is φ = 137805600.

The previous prime is 304309477. The next prime is 304309493. The reversal of 304309478 is 874903403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304309471) 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 7 ways as a sum of consecutive naturals, for example, 19793 + ... + 31628.

It is an arithmetic number, because the mean of its divisors is an integer number (31238865).

Almost surely, 2^304309478 is an apocalyptic number.

304309478 is a deficient number, since it is larger than the sum of its proper divisors (195512362).

304309478 is a wasteful number, since it uses less digits than its factorization.

304309478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51703.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 304309478 is about 17444.4684069191. The cubic root of 304309478 is about 672.6231744641.

The spelling of 304309478 in words is "three hundred four million, three hundred nine thousand, four hundred seventy-eight".