304421376 has 160 divisors (see below), whose sum is σ = 967938048. Its totient is φ = 83128320.

The previous prime is 304421371. The next prime is 304421387. The reversal of 304421376 is 673124403.

It is not an unprimeable number, because it can be changed into a prime (304421371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246681 + ... + 247911.

Almost surely, 2^304421376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304421376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483969024).

304421376 is an abundant number, since it is smaller than the sum of its proper divisors (663516672).

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

304421376 is a wasteful number, since it uses less digits than its factorization.

304421376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282 (or 1266 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 304421376 is about 17447.6753752470. The cubic root of 304421376 is about 672.7056080501.

Adding to 304421376 its reverse (673124403), we get a palindrome (977545779).

The spelling of 304421376 in words is "three hundred four million, four hundred twenty-one thousand, three hundred seventy-six".