30748 has 6 divisors (see below), whose sum is σ = 53816. Its totient is φ = 15372.

The previous prime is 30727. The next prime is 30757. The reversal of 30748 is 84703.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3840 + ... + 3847.

2³⁰⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

30748 is a deficient number, since it is larger than the sum of its proper divisors (23068).

30748 is a wasteful number, since it uses less digits than its factorization.

30748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7691 (or 7689 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 30748 is about 175.3510764153. The cubic root of 30748 is about 31.3284535432.

The spelling of 30748 in words is "thirty thousand, seven hundred forty-eight".