240223231 has 4 divisors (see below), whose sum is σ = 240257200. Its totient is φ = 240189264.

The previous prime is 240223229. The next prime is 240223237. The reversal of 240223231 is 132322042.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 240223231 - 2¹ = 240223229 is a prime.

It is a super-2 number, since 2×240223231² = 115414401424158722, 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 = 240223199 and 240223208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240223237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1926 + ... + 22003.

It is an arithmetic number, because the mean of its divisors is an integer number (60064300).

Almost surely, 2^240223231 is an apocalyptic number.

240223231 is a deficient number, since it is larger than the sum of its proper divisors (33969).

240223231 is a wasteful number, since it uses less digits than its factorization.

240223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33968.

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

The square root of 240223231 is about 15499.1364598161. The cubic root of 240223231 is about 621.6391166561.

Adding to 240223231 its reverse (132322042), we get a palindrome (372545273).

The spelling of 240223231 in words is "two hundred forty million, two hundred twenty-three thousand, two hundred thirty-one".