231240422 has 8 divisors (see below), whose sum is σ = 396412176. Its totient is φ = 99103032.

The previous prime is 231240419. The next prime is 231240467. The reversal of 231240422 is 224042132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 231240394 and 231240403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8258573 + ... + 8258600.

It is an arithmetic number, because the mean of its divisors is an integer number (49551522).

Almost surely, 2^231240422 is an apocalyptic number.

231240422 is a deficient number, since it is larger than the sum of its proper divisors (165171754).

231240422 is a wasteful number, since it uses less digits than its factorization.

231240422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16517182.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 231240422 is about 15206.5913997845. The cubic root of 231240422 is about 613.7920387718.

Adding to 231240422 its reverse (224042132), we get a palindrome (455282554).

The spelling of 231240422 in words is "two hundred thirty-one million, two hundred forty thousand, four hundred twenty-two".