328212 has 30 divisors (see below), whose sum is σ = 858858. Its totient is φ = 109296.

The previous prime is 328177. The next prime is 328213. The reversal of 328212 is 212823.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 171396 + 156816 = 414^2 + 396^2 .

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

It is an Ulam number.

It is a d-powerful number, because it can be written as 3 + 2⁴ + 2¹⁶ + 8³ + 1 + 2¹⁸ .

It is a nialpdrome in base 13.

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 328212.

It is not an unprimeable number, because it can be changed into a prime (328213) by changing a digit.

328212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 183 + ... + 830.

2³²⁸²¹² is an apocalyptic number.

It is an amenable number.

328212 is an abundant number, since it is smaller than the sum of its proper divisors (530646).

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

328212 is a wasteful number, since it uses less digits than its factorization.

328212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1018 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 328212 is about 572.8978966622. The cubic root of 328212 is about 68.9791997795.

It can be divided in two parts, 32821 and 2, that added together give a palindrome (32823).

The spelling of 328212 in words is "three hundred twenty-eight thousand, two hundred twelve".