31332 has 24 divisors (see below), whose sum is σ = 83776. Its totient is φ = 8928.

The previous prime is 31327. The next prime is 31333. The reversal of 31332 is 23313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nude number because it is divisible by every one of its digits.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 31332.

It is not an unprimeable number, because it can be changed into a prime (31333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103 + ... + 270.

2³¹³³² is an apocalyptic number.

It is an amenable number.

31332 is an abundant number, since it is smaller than the sum of its proper divisors (52444).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41888).

31332 is a wasteful number, since it uses less digits than its factorization.

31332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 385 counting only the distinct ones).

The product of its digits is 54, while the sum is 12.

The square root of 31332 is about 177.0084743734. The cubic root of 31332 is about 31.5255524588.

Adding to 31332 its reverse (23313), we get a palindrome (54645).

It can be divided in two parts, 31 and 332, that added together give a palindrome (363).

The spelling of 31332 in words is "thirty-one thousand, three hundred thirty-two".