304123345340 has 144 divisors (see below), whose sum is σ = 684348188832. Its totient is φ = 113496809472.

The previous prime is 304123345327. The next prime is 304123345343. The reversal of 304123345340 is 43543321403.

It is a junction number, because it is equal to n+sod(n) for n = 304123345297 and 304123345306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304123345343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158976224 + ... + 158978136.

It is an arithmetic number, because the mean of its divisors is an integer number (4752417978).

Almost surely, 2^304123345340 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 304123345340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342174094416).

304123345340 is an abundant number, since it is smaller than the sum of its proper divisors (380224843492).

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

304123345340 is a wasteful number, since it uses less digits than its factorization.

304123345340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284 (or 2263 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 304123345340 its reverse (43543321403), we get a palindrome (347666666743).

The spelling of 304123345340 in words is "three hundred four billion, one hundred twenty-three million, three hundred forty-five thousand, three hundred forty".