231422432 has 24 divisors (see below), whose sum is σ = 479593800. Its totient is φ = 109620864.

The previous prime is 231422423. The next prime is 231422447. The reversal of 231422432 is 234224132.

It is a junction number, because it is equal to n+sod(n) for n = 231422398 and 231422407.

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, 189707 + ... + 190922.

It is an arithmetic number, because the mean of its divisors is an integer number (19983075).

Almost surely, 2^231422432 is an apocalyptic number.

It is an amenable number.

231422432 is an abundant number, since it is smaller than the sum of its proper divisors (248171368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231422432 is a wasteful number, since it uses less digits than its factorization.

231422432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380658 (or 380650 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 231422432 is about 15212.5747985014. The cubic root of 231422432 is about 613.9530356974.

Adding to 231422432 its reverse (234224132), we get a palindrome (465646564).

The spelling of 231422432 in words is "two hundred thirty-one million, four hundred twenty-two thousand, four hundred thirty-two".