328072 has 16 divisors (see below), whose sum is σ = 642240. Its totient is φ = 156816.

The previous prime is 328067. The next prime is 328093. The reversal of 328072 is 270823.

It is a happy number.

It is an unprimeable number.

328072 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 3 ways as a sum of consecutive naturals, for example, 708 + ... + 1075.

It is an arithmetic number, because the mean of its divisors is an integer number (40140).

2³²⁸⁰⁷² is an apocalyptic number.

It is an amenable number.

328072 is a deficient number, since it is larger than the sum of its proper divisors (314168).

328072 is a wasteful number, since it uses less digits than its factorization.

328072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1808 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 328072 is about 572.7756978085. The cubic root of 328072 is about 68.9693906100.

Adding to 328072 its reverse (270823), we get a palindrome (598895).

The spelling of 328072 in words is "three hundred twenty-eight thousand, seventy-two".