304404449828920 has 128 divisors (see below), whose sum is σ = 784757976739200. Its totient is φ = 104100104503296.

The previous prime is 304404449828917. The next prime is 304404449828923. The reversal of 304404449828920 is 29828944404403.

It is an interprime number because it is at equal distance from previous prime (304404449828917) and next prime (304404449828923).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304404449828923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4040961816 + ... + 4041037144.

It is an arithmetic number, because the mean of its divisors is an integer number (6130921693275).

Almost surely, 2^{304404449828920} 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 304404449828920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392378988369600).

304404449828920 is an abundant number, since it is smaller than the sum of its proper divisors (480353526910280).

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

304404449828920 is a wasteful number, since it uses less digits than its factorization.

304404449828920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112097 (or 112093 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 61.

The spelling of 304404449828920 in words is "three hundred four trillion, four hundred four billion, four hundred forty-nine million, eight hundred twenty-eight thousand, nine hundred twenty".