231322908 has 48 divisors (see below), whose sum is σ = 570286080. Its totient is φ = 72859584.

The previous prime is 231322877. The next prime is 231322913. The reversal of 231322908 is 809223132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9285 + ... + 23427.

It is an arithmetic number, because the mean of its divisors is an integer number (11880960).

Almost surely, 2^231322908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231322908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285143040).

231322908 is an abundant number, since it is smaller than the sum of its proper divisors (338963172).

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

231322908 is a wasteful number, since it uses less digits than its factorization.

231322908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14226 (or 14224 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 231322908 is about 15209.3033371026. The cubic root of 231322908 is about 613.8650122177.

The spelling of 231322908 in words is "two hundred thirty-one million, three hundred twenty-two thousand, nine hundred eight".