304231340 has 24 divisors (see below), whose sum is σ = 730155552. Its totient is φ = 104307840.

The previous prime is 304231313. The next prime is 304231349. The reversal of 304231340 is 43132403.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (304231349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086401 + ... + 1086680.

It is an arithmetic number, because the mean of its divisors is an integer number (30423148).

Almost surely, 2^304231340 is an apocalyptic number.

It is an amenable number.

304231340 is an abundant number, since it is smaller than the sum of its proper divisors (425924212).

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

304231340 is a wasteful number, since it uses less digits than its factorization.

304231340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173097 (or 2173095 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 304231340 is about 17442.2286420056. The cubic root of 304231340 is about 672.5655993830.

Adding to 304231340 its reverse (43132403), we get a palindrome (347363743).

The spelling of 304231340 in words is "three hundred four million, two hundred thirty-one thousand, three hundred forty".