304323104040 has 128 divisors (see below), whose sum is σ = 927887080320. Its totient is φ = 79837056000.

The previous prime is 304323104017. The next prime is 304323104069. The reversal of 304323104040 is 40401323403.

It is a super-2 number, since 2×304323104040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 304323104040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1822875 + ... + 1982805.

It is an arithmetic number, because the mean of its divisors is an integer number (7249117815).

Almost surely, 2^304323104040 is an apocalyptic number.

304323104040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304323104040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463943540160).

304323104040 is an abundant number, since it is smaller than the sum of its proper divisors (623563976280).

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

304323104040 is a wasteful number, since it uses less digits than its factorization.

304323104040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160203 (or 160199 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 304323104040 its reverse (40401323403), we get a palindrome (344724427443).

The spelling of 304323104040 in words is "three hundred four billion, three hundred twenty-three million, one hundred four thousand, forty".