328045 has 4 divisors (see below), whose sum is σ = 393660. Its totient is φ = 262432.

The previous prime is 328043. The next prime is 328051. The reversal of 328045 is 540823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217156 + 110889 = 466^2 + 333^2 .

It is a cyclic number.

It is not a de Polignac number, because 328045 - 2¹ = 328043 is a prime.

It is a super-2 number, since 2×328045² = 215227044050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328043) 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, 32800 + ... + 32809.

It is an arithmetic number, because the mean of its divisors is an integer number (98415).

2³²⁸⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

328045 is a deficient number, since it is larger than the sum of its proper divisors (65615).

328045 is an equidigital number, since it uses as much as digits as its factorization.

328045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65614.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 328045 is about 572.7521278878. The cubic root of 328045 is about 68.9674985207.

Adding to 328045 its reverse (540823), we get a palindrome (868868).

The spelling of 328045 in words is "three hundred twenty-eight thousand, forty-five".