304123420432 has 80 divisors (see below), whose sum is σ = 646967185200. Its totient is φ = 137624887296.

The previous prime is 304123420373. The next prime is 304123420457. The reversal of 304123420432 is 234024321403.

It can be written as a sum of positive squares in 8 ways, for example, as 306390016 + 303817030416 = 17504^2 + 551196^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 304123420432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18258444 + ... + 18275092.

It is an arithmetic number, because the mean of its divisors is an integer number (8087089815).

Almost surely, 2^304123420432 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 304123420432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323483592600).

304123420432 is an abundant number, since it is smaller than the sum of its proper divisors (342843764768).

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

304123420432 is a wasteful number, since it uses less digits than its factorization.

304123420432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18380 (or 18374 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 304123420432 its reverse (234024321403), we get a palindrome (538147741835).

The spelling of 304123420432 in words is "three hundred four billion, one hundred twenty-three million, four hundred twenty thousand, four hundred thirty-two".