304240131 has 80 divisors (see below), whose sum is σ = 520803360. Its totient is φ = 176359680.

The previous prime is 304240127. The next prime is 304240171. The reversal of 304240131 is 131042403.

It is not a de Polignac number, because 304240131 - 2² = 304240127 is a prime.

It is a super-2 number, since 2×304240131² = 185124114621794322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (304240171) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7420471 + ... + 7420511.

It is an arithmetic number, because the mean of its divisors is an integer number (6510042).

Almost surely, 2^304240131 is an apocalyptic number.

304240131 is a deficient number, since it is larger than the sum of its proper divisors (216563229).

304240131 is an frugal number, since it uses more digits than its factorization.

304240131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 304240131 is about 17442.4806435323. The cubic root of 304240131 is about 672.5720774217.

Adding to 304240131 its reverse (131042403), we get a palindrome (435282534).

The spelling of 304240131 in words is "three hundred four million, two hundred forty thousand, one hundred thirty-one".