304663412240 has 120 divisors (see below), whose sum is σ = 786620408280. Its totient is φ = 109644226560.

The previous prime is 304663412237. The next prime is 304663412297. The reversal of 304663412240 is 42214366403.

It can be written as a sum of positive squares in 4 ways, for example, as 35597123584 + 269066288656 = 188672^2 + 518716^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 304663412240.

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, 776726 + ... + 1101194.

It is an arithmetic number, because the mean of its divisors is an integer number (6555170069).

Almost surely, 2^304663412240 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 304663412240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393310204140).

304663412240 is an abundant number, since it is smaller than the sum of its proper divisors (481956996040).

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

304663412240 is a wasteful number, since it uses less digits than its factorization.

304663412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324601 (or 324584 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 304663412240 its reverse (42214366403), we get a palindrome (346877778643).

The spelling of 304663412240 in words is "three hundred four billion, six hundred sixty-three million, four hundred twelve thousand, two hundred forty".