328538 has 16 divisors (see below), whose sum is σ = 582144. Its totient is φ = 136080.

The previous prime is 328519. The next prime is 328543. The reversal of 328538 is 835823.

It is a self number, because there is not a number n which added to its sum of digits gives 328538.

It is an unprimeable number.

328538 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 7 ways as a sum of consecutive naturals, for example, 56 + ... + 812.

It is an arithmetic number, because the mean of its divisors is an integer number (36384).

2³²⁸⁵³⁸ is an apocalyptic number.

328538 is a deficient number, since it is larger than the sum of its proper divisors (253606).

328538 is a wasteful number, since it uses less digits than its factorization.

328538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its digits is 5760, while the sum is 29.

The square root of 328538 is about 573.1823444594. The cubic root of 328538 is about 69.0020303260.

Subtracting from 328538 its sum of digits (29), we obtain a cube (328509 = 69³).

The spelling of 328538 in words is "three hundred twenty-eight thousand, five hundred thirty-eight".