30328 has 16 divisors (see below), whose sum is σ = 60480. Its totient is φ = 14208.

The previous prime is 30323. The next prime is 30341. The reversal of 30328 is 82303.

It is a happy number.

30328 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30323) by changing a digit.

30328 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, 25 + ... + 247.

It is an arithmetic number, because the mean of its divisors is an integer number (3780).

2³⁰³²⁸ is an apocalyptic number.

It is an amenable number.

30328 is a deficient number, since it is larger than the sum of its proper divisors (30152).

30328 is a wasteful number, since it uses less digits than its factorization.

30328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30328 is about 174.1493611817. The cubic root of 30328 is about 31.1851562088.

The spelling of 30328 in words is "thirty thousand, three hundred twenty-eight".