304140140 has 24 divisors (see below), whose sum is σ = 640099152. Its totient is φ = 121388480.

The previous prime is 304140131. The next prime is 304140143. The reversal of 304140140 is 41041403.

It is not an unprimeable number, because it can be changed into a prime (304140143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7274 + ... + 25713.

It is an arithmetic number, because the mean of its divisors is an integer number (26670798).

Almost surely, 2^304140140 is an apocalyptic number.

It is an amenable number.

304140140 is an abundant number, since it is smaller than the sum of its proper divisors (335959012).

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

304140140 is a wasteful number, since it uses less digits than its factorization.

304140140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33457 (or 33455 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 304140140 is about 17439.6141012352. The cubic root of 304140140 is about 672.4983872489.

Adding to 304140140 its reverse (41041403), we get a palindrome (345181543).

The spelling of 304140140 in words is "three hundred four million, one hundred forty thousand, one hundred forty".