331712 has 28 divisors (see below), whose sum is σ = 676656. Its totient is φ = 161280.

The previous prime is 331711. The next prime is 331739. The reversal of 331712 is 217133.

It is a super-2 number, since 2×331712² = 220065701888, which contains 22 as substring.

It is a zygodrome in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 331712.

It is not an unprimeable number, because it can be changed into a prime (331711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4508 + ... + 4580.

2³³¹⁷¹² is an apocalyptic number.

331712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338328).

331712 is an abundant number, since it is smaller than the sum of its proper divisors (344944).

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

331712 is an equidigital number, since it uses as much as digits as its factorization.

331712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 146 counting only the distinct ones).

The product of its digits is 126, while the sum is 17.

The square root of 331712 is about 575.9444417650. The cubic root of 331712 is about 69.2235277009.

Adding to 331712 its reverse (217133), we get a palindrome (548845).

The spelling of 331712 in words is "three hundred thirty-one thousand, seven hundred twelve".