304343420 has 12 divisors (see below), whose sum is σ = 639121224. Its totient is φ = 121737360.

The previous prime is 304343407. The next prime is 304343423. The reversal of 304343420 is 24343403.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304343423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7608566 + ... + 7608605.

It is an arithmetic number, because the mean of its divisors is an integer number (53260102).

Almost surely, 2^304343420 is an apocalyptic number.

It is an amenable number.

304343420 is an abundant number, since it is smaller than the sum of its proper divisors (334777804).

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

304343420 is a wasteful number, since it uses less digits than its factorization.

304343420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15217180 (or 15217178 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 304343420 is about 17445.4412383293. The cubic root of 304343420 is about 672.6481811636.

Adding to 304343420 its reverse (24343403), we get a palindrome (328686823).

The spelling of 304343420 in words is "three hundred four million, three hundred forty-three thousand, four hundred twenty".