328388 has 12 divisors (see below), whose sum is σ = 585900. Its totient is φ = 160992.

The previous prime is 328381. The next prime is 328397. The reversal of 328388 is 883823.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 153664 = 418^2 + 392^2 .

It is not an unprimeable number, because it can be changed into a prime (328381) by changing a digit.

328388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563 + ... + 986.

It is an arithmetic number, because the mean of its divisors is an integer number (48825).

2³²⁸³⁸⁸ is an apocalyptic number.

It is an amenable number.

328388 is a deficient number, since it is larger than the sum of its proper divisors (257512).

328388 is a wasteful number, since it uses less digits than its factorization.

328388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 1604 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 328388 is about 573.0514811079. The cubic root of 328388 is about 68.9915273501.

The spelling of 328388 in words is "three hundred twenty-eight thousand, three hundred eighty-eight".