304401263144 has 128 divisors (see below), whose sum is σ = 662265434880. Its totient is φ = 129815347200.

The previous prime is 304401263143. The next prime is 304401263171. The reversal of 304401263144 is 441362104403.

It is a self number, because there is not a number n which added to its sum of digits gives 304401263144.

It is not an unprimeable number, because it can be changed into a prime (304401263143) 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, 22178204 + ... + 22191924.

It is an arithmetic number, because the mean of its divisors is an integer number (5173948710).

Almost surely, 2^304401263144 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 304401263144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331132717440).

304401263144 is an abundant number, since it is smaller than the sum of its proper divisors (357864171736).

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

304401263144 is a wasteful number, since it uses less digits than its factorization.

304401263144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13971 (or 13967 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 304401263144 its reverse (441362104403), we get a palindrome (745763367547).

The spelling of 304401263144 in words is "three hundred four billion, four hundred one million, two hundred sixty-three thousand, one hundred forty-four".