304343040 has 96 divisors (see below), whose sum is σ = 973758240. Its totient is φ = 81149952.

The previous prime is 304343033. The next prime is 304343047. The reversal of 304343040 is 40343403.

It is an interprime number because it is at equal distance from previous prime (304343033) and next prime (304343047).

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 304342998 and 304343016.

It is not an unprimeable number, because it can be changed into a prime (304343047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25767 + ... + 35673.

It is an arithmetic number, because the mean of its divisors is an integer number (10143315).

Almost surely, 2^304343040 is an apocalyptic number.

304343040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304343040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486879120).

304343040 is an abundant number, since it is smaller than the sum of its proper divisors (669415200).

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

304343040 is an equidigital number, since it uses as much as digits as its factorization.

304343040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9937 (or 9917 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 304343040 is about 17445.4303472285. The cubic root of 304343040 is about 672.6479012097.

Adding to 304343040 its reverse (40343403), we get a palindrome (344686443).

The spelling of 304343040 in words is "three hundred four million, three hundred forty-three thousand, forty".