240430231 has 4 divisors (see below), whose sum is σ = 240664464. Its totient is φ = 240196000.

The previous prime is 240430217. The next prime is 240430249. The reversal of 240430231 is 132034042.

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 240430231 - 2⁹ = 240429719 is a prime.

It is a super-2 number, since 2×240430231² = 115613391957426722, 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 = 240430199 and 240430208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240430261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115570 + ... + 117631.

It is an arithmetic number, because the mean of its divisors is an integer number (60166116).

Almost surely, 2^240430231 is an apocalyptic number.

240430231 is a deficient number, since it is larger than the sum of its proper divisors (234233).

240430231 is a wasteful number, since it uses less digits than its factorization.

240430231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234232.

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

The square root of 240430231 is about 15505.8128132646. The cubic root of 240430231 is about 621.8176205604.

Adding to 240430231 its reverse (132034042), we get a palindrome (372464273).

The spelling of 240430231 in words is "two hundred forty million, four hundred thirty thousand, two hundred thirty-one".