240304231 has 4 divisors (see below), whose sum is σ = 254439792. Its totient is φ = 226168672.

The previous prime is 240304213. The next prime is 240304261. The reversal of 240304231 is 132403042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240304231 - 2⁹ = 240303719 is a prime.

It is a super-2 number, since 2×240304231² = 115492246873002722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240304199 and 240304208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240304201) 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 3 ways as a sum of consecutive naturals, for example, 7067755 + ... + 7067788.

It is an arithmetic number, because the mean of its divisors is an integer number (63609948).

Almost surely, 2^240304231 is an apocalyptic number.

240304231 is a deficient number, since it is larger than the sum of its proper divisors (14135561).

240304231 is a wasteful number, since it uses less digits than its factorization.

240304231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135560.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 240304231 is about 15501.7492883868. The cubic root of 240304231 is about 621.7089782176.

Adding to 240304231 its reverse (132403042), we get a palindrome (372707273).

The spelling of 240304231 in words is "two hundred forty million, three hundred four thousand, two hundred thirty-one".