30130828 has 96 divisors (see below), whose sum is σ = 69995520. Its totient is φ = 11024640.

The previous prime is 30130781. The next prime is 30130829. The reversal of 30130828 is 82803103.

It is not an unprimeable number, because it can be changed into a prime (30130829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 493918 + ... + 493978.

It is an arithmetic number, because the mean of its divisors is an integer number (729120).

Almost surely, 2^30130828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30130828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34997760).

30130828 is an abundant number, since it is smaller than the sum of its proper divisors (39864692).

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

30130828 is a wasteful number, since it uses less digits than its factorization.

30130828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 30130828 is about 5489.1554906014. The cubic root of 30130828 is about 311.1742767247.

The spelling of 30130828 in words is "thirty million, one hundred thirty thousand, eight hundred twenty-eight".