304421346 has 48 divisors (see below), whose sum is σ = 701146368. Its totient is φ = 95126400.

The previous prime is 304421309. The next prime is 304421371. The reversal of 304421346 is 643124403.

304421346 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81091 + ... + 84761.

It is an arithmetic number, because the mean of its divisors is an integer number (14607216).

Almost surely, 2^304421346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304421346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350573184).

304421346 is an abundant number, since it is smaller than the sum of its proper divisors (396725022).

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

304421346 is a wasteful number, since it uses less digits than its factorization.

304421346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967 (or 3964 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 304421346 is about 17447.6745155336. The cubic root of 304421346 is about 672.7055859523.

Adding to 304421346 its reverse (643124403), we get a palindrome (947545749).

The spelling of 304421346 in words is "three hundred four million, four hundred twenty-one thousand, three hundred forty-six".