30648 has 16 divisors (see below), whose sum is σ = 76680. Its totient is φ = 10208.

The previous prime is 30643. The next prime is 30649. The reversal of 30648 is 84603.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 30648.

It is not an unprimeable number, because it can be changed into a prime (30643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615 + ... + 662.

2³⁰⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

30648 is an abundant number, since it is smaller than the sum of its proper divisors (46032).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38340).

30648 is a wasteful number, since it uses less digits than its factorization.

30648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30648 is about 175.0657019522. The cubic root of 30648 is about 31.2944540661.

The spelling of 30648 in words is "thirty thousand, six hundred forty-eight".