It is a happy number.
It is a nude number because it is divisible by every one of its digits.
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 312912.
It is an unprimeable number.
312912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2312912 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 312912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457002).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312912 is a wasteful number, since it uses less digits than its factorization.
312912 is an odious number, because the sum of its binary digits is odd.
The square root of 312912 is about 559.3853769987. The cubic root of 312912 is about 67.8902497201.
The spelling of 312912 in words is "three hundred twelve thousand, nine hundred twelve".