304040131240 has 64 divisors (see below), whose sum is σ = 687851429760. Its totient is φ = 120947930880.

The previous prime is 304040131223. The next prime is 304040131273. The reversal of 304040131240 is 42131040403.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22868995 + ... + 22882285.

It is an arithmetic number, because the mean of its divisors is an integer number (10747678590).

Almost surely, 2^304040131240 is an apocalyptic number.

It is an amenable number.

304040131240 is an abundant number, since it is smaller than the sum of its proper divisors (383811298520).

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

304040131240 is a wasteful number, since it uses less digits than its factorization.

304040131240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16402 (or 16398 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 304040131240 its reverse (42131040403), we get a palindrome (346171171643).

The spelling of 304040131240 in words is "three hundred four billion, forty million, one hundred thirty-one thousand, two hundred forty".