231190932 has 96 divisors (see below), whose sum is σ = 650280960. Its totient is φ = 62530560.

The previous prime is 231190891. The next prime is 231190951. The reversal of 231190932 is 239091132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231190932.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121444 + ... + 123332.

It is an arithmetic number, because the mean of its divisors is an integer number (6773760).

Almost surely, 2^231190932 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 231190932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325140480).

231190932 is an abundant number, since it is smaller than the sum of its proper divisors (419090028).

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

231190932 is a wasteful number, since it uses less digits than its factorization.

231190932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 231190932 is about 15204.9640578332. The cubic root of 231190932 is about 613.7482477900.

The spelling of 231190932 in words is "two hundred thirty-one million, one hundred ninety thousand, nine hundred thirty-two".