328432 has 20 divisors (see below), whose sum is σ = 685720. Its totient is φ = 151488.

The previous prime is 328429. The next prime is 328439. The reversal of 328432 is 234823.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁹ + 2 + 4² + 8³ + 3¹¹ + 2¹⁷ .

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328439) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 582 + ... + 997.

It is an arithmetic number, because the mean of its divisors is an integer number (34286).

2³²⁸⁴³² is an apocalyptic number.

It is an amenable number.

328432 is an abundant number, since it is smaller than the sum of its proper divisors (357288).

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

328432 is a wasteful number, since it uses less digits than its factorization.

328432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600 (or 1594 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 328432 is about 573.0898707882. The cubic root of 328432 is about 68.9946085544.

It can be divided in two parts, 32 and 8432, that added together give a square (8464 = 92²).

The spelling of 328432 in words is "three hundred twenty-eight thousand, four hundred thirty-two".