30000528 has 30 divisors (see below), whose sum is σ = 83960214. Its totient is φ = 10000128.

The previous prime is 30000521. The next prime is 30000571. The reversal of 30000528 is 82500003.

30000528 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in only one way, i.e., 25887744 + 4112784 = 5088^2 + 2028^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 30000528.

It is not an unprimeable number, because it can be changed into a prime (30000521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104025 + ... + 104312.

Almost surely, 2^30000528 is an apocalyptic number.

It is an amenable number.

30000528 is an abundant number, since it is smaller than the sum of its proper divisors (53959686).

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

30000528 is a wasteful number, since it uses less digits than its factorization.

30000528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208351 (or 208342 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 30000528 is about 5477.2737744246. The cubic root of 30000528 is about 310.7250734944.

The spelling of 30000528 in words is "thirty million, five hundred twenty-eight", and thus it is an aban number.