304904 has 8 divisors (see below), whose sum is σ = 571710. Its totient is φ = 152448.

The previous prime is 304903. The next prime is 304907. The reversal of 304904 is 409403.

304904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 252004 + 52900 = 502^2 + 230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (304901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19049 + ... + 19064.

2³⁰⁴⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

304904 is a deficient number, since it is larger than the sum of its proper divisors (266806).

304904 is a wasteful number, since it uses less digits than its factorization.

304904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38119 (or 38115 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 304904 is about 552.1811297029. The cubic root of 304904 is about 67.3060918678.

The spelling of 304904 in words is "three hundred four thousand, nine hundred four".