304140023 has 16 divisors (see below), whose sum is σ = 349725600. Its totient is φ = 261905280.

The previous prime is 304140019. The next prime is 304140041. The reversal of 304140023 is 320041403.

It is a cyclic number.

It is not a de Polignac number, because 304140023 - 2² = 304140019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304139983 and 304140010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304140043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7913 + ... + 25901.

It is an arithmetic number, because the mean of its divisors is an integer number (21857850).

Almost surely, 2^304140023 is an apocalyptic number.

304140023 is a deficient number, since it is larger than the sum of its proper divisors (45585577).

304140023 is a wasteful number, since it uses less digits than its factorization.

304140023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18082.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 304140023 is about 17439.6107468028. The cubic root of 304140023 is about 672.4983010142.

Adding to 304140023 its reverse (320041403), we get a palindrome (624181426).

The spelling of 304140023 in words is "three hundred four million, one hundred forty thousand, twenty-three".