231694332 has 12 divisors (see below), whose sum is σ = 540620136. Its totient is φ = 77231440.

The previous prime is 231694319. The next prime is 231694399. The reversal of 231694332 is 233496132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 231694293 and 231694302.

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, 9653919 + ... + 9653942.

It is an arithmetic number, because the mean of its divisors is an integer number (45051678).

Almost surely, 2^231694332 is an apocalyptic number.

It is an amenable number.

231694332 is an abundant number, since it is smaller than the sum of its proper divisors (308925804).

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

231694332 is a wasteful number, since it uses less digits than its factorization.

231694332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19307868 (or 19307866 counting only the distinct ones).

The product of its digits is 23328, while the sum is 33.

The square root of 231694332 is about 15221.5088608193. The cubic root of 231694332 is about 614.1933876436.

The spelling of 231694332 in words is "two hundred thirty-one million, six hundred ninety-four thousand, three hundred thirty-two".