304345132240 has 20 divisors (see below), whose sum is σ = 707602432644. Its totient is φ = 121738052864.

The previous prime is 304345132183. The next prime is 304345132249. The reversal of 304345132240 is 42231543403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38043722304 + 266301409936 = 195048^2 + 516044^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304345132249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902156997 + ... + 1902157156.

Almost surely, 2^304345132240 is an apocalyptic number.

It is an amenable number.

304345132240 is an abundant number, since it is smaller than the sum of its proper divisors (403257300404).

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

304345132240 is a wasteful number, since it uses less digits than its factorization.

304345132240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804314166 (or 3804314160 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 304345132240 its reverse (42231543403), we get a palindrome (346576675643).

The spelling of 304345132240 in words is "three hundred four billion, three hundred forty-five million, one hundred thirty-two thousand, two hundred forty".