304421404 has 12 divisors (see below), whose sum is σ = 608842864. Its totient is φ = 130466304.

The previous prime is 304421393. The next prime is 304421407. The reversal of 304421404 is 404124403.

304421404 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304421407) 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 3 ways as a sum of consecutive naturals, for example, 5436069 + ... + 5436124.

Almost surely, 2^304421404 is an apocalyptic number.

It is an amenable number.

304421404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304421404 is a wasteful number, since it uses less digits than its factorization.

304421404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872204 (or 10872202 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 304421404 is about 17447.6761776461. The cubic root of 304421404 is about 672.7056286748.

Adding to 304421404 its reverse (404124403), we get a palindrome (708545807).

The spelling of 304421404 in words is "three hundred four million, four hundred twenty-one thousand, four hundred four".