328312 has 8 divisors (see below), whose sum is σ = 615600. Its totient is φ = 164152.

The previous prime is 328303. The next prime is 328327. The reversal of 328312 is 213823.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 328312.

It is a congruent number.

It is an unprimeable number.

328312 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20512 + ... + 20527.

It is an arithmetic number, because the mean of its divisors is an integer number (76950).

2³²⁸³¹² is an apocalyptic number.

It is an amenable number.

328312 is a deficient number, since it is larger than the sum of its proper divisors (287288).

328312 is a wasteful number, since it uses less digits than its factorization.

328312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41045 (or 41041 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 328312 is about 572.9851656020. The cubic root of 328312 is about 68.9862046214.

The spelling of 328312 in words is "three hundred twenty-eight thousand, three hundred twelve".