304020404 has 12 divisors (see below), whose sum is σ = 532334628. Its totient is φ = 151924800.

The previous prime is 304020397. The next prime is 304020481. The reversal of 304020404 is 404020403.

It can be written as a sum of positive squares in 2 ways, for example, as 113635600 + 190384804 = 10660^2 + 13798^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12977 + ... + 27864.

It is an arithmetic number, because the mean of its divisors is an integer number (44361219).

Almost surely, 2^304020404 is an apocalyptic number.

It is an amenable number.

304020404 is a deficient number, since it is larger than the sum of its proper divisors (228314224).

304020404 is a wasteful number, since it uses less digits than its factorization.

304020404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42706 (or 42704 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 304020404 is about 17436.1808891741. The cubic root of 304020404 is about 672.4101243886.

Adding to 304020404 its reverse (404020403), we get a palindrome (708040807).

Subtracting 304020404 from its reverse (404020403), we obtain a palindrome (99999999).

The spelling of 304020404 in words is "three hundred four million, twenty thousand, four hundred four".