30730 has 16 divisors (see below), whose sum is σ = 63360. Its totient is φ = 10512.

The previous prime is 30727. The next prime is 30757. The reversal of 30730 is 3703.

It is a self number, because there is not a number n which added to its sum of digits gives 30730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150 + ... + 289.

It is an arithmetic number, because the mean of its divisors is an integer number (3960).

2³⁰⁷³⁰ is an apocalyptic number.

30730 is an abundant number, since it is smaller than the sum of its proper divisors (32630).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31680).

30730 is a wasteful number, since it uses less digits than its factorization.

30730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453.

The product of its (nonzero) digits is 63, while the sum is 13.

The square root of 30730 is about 175.2997432970. The cubic root of 30730 is about 31.3223390833.

The spelling of 30730 in words is "thirty thousand, seven hundred thirty".