30000530 has 16 divisors (see below), whose sum is σ = 61715520. Its totient is φ = 10285872.

The previous prime is 30000521. The next prime is 30000571. The reversal of 30000530 is 3500003.

It is a Curzon number.

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, 214220 + ... + 214359.

It is an arithmetic number, because the mean of its divisors is an integer number (3857220).

Almost surely, 2^30000530 is an apocalyptic number.

30000530 is an abundant number, since it is smaller than the sum of its proper divisors (31714990).

30000530 is a wasteful number, since it uses less digits than its factorization.

30000530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428593.

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

The square root of 30000530 is about 5477.2739569972. The cubic root of 30000530 is about 310.7250803993.

Adding to 30000530 its reverse (3500003), we get a palindrome (33500533).

The spelling of 30000530 in words is "thirty million, five hundred thirty", and thus it is an aban number.