232320312 has 80 divisors (see below), whose sum is σ = 743685360. Its totient is φ = 66375936.

The previous prime is 232320251. The next prime is 232320313. The reversal of 232320312 is 213023232.

It is a happy number.

232320312 is a `hidden beast` number, since 2 + 32 + 320 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232320313) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21073 + ... + 30144.

It is an arithmetic number, because the mean of its divisors is an integer number (9296067).

Almost surely, 2^232320312 is an apocalyptic number.

It is an amenable number.

232320312 is an abundant number, since it is smaller than the sum of its proper divisors (511365048).

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

232320312 is a wasteful number, since it uses less digits than its factorization.

232320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51242 (or 51229 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 232320312 is about 15242.0573414484. The cubic root of 232320312 is about 614.7460224341.

Adding to 232320312 its reverse (213023232), we get a palindrome (445343544).

The spelling of 232320312 in words is "two hundred thirty-two million, three hundred twenty thousand, three hundred twelve".