30530 has 16 divisors (see below), whose sum is σ = 57024. Its totient is φ = 11760.

The previous prime is 30529. The next prime is 30539. The reversal of 30530 is 3503.

30530 = T₁₀₈ + T₁₀₉ + ... + T₁₁₂.

It is a nialpdrome in base 16.

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 30530.

It is not an unprimeable number, because it can be changed into a prime (30539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395 + ... + 465.

It is an arithmetic number, because the mean of its divisors is an integer number (3564).

2³⁰⁵³⁰ is an apocalyptic number.

30530 is a deficient number, since it is larger than the sum of its proper divisors (26494).

30530 is a wasteful number, since it uses less digits than its factorization.

30530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121.

The product of its (nonzero) digits is 45, while the sum is 11.

The square root of 30530 is about 174.7283606058. The cubic root of 30530 is about 31.2542394248.

The spelling of 30530 in words is "thirty thousand, five hundred thirty".