30285528 has 128 divisors (see below), whose sum is σ = 95424000. Its totient is φ = 7959168.

The previous prime is 30285509. The next prime is 30285529. The reversal of 30285528 is 82558203.

It is a super-3 number, since 3×30285528³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30285529) 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, 106875 + ... + 107157.

It is an arithmetic number, because the mean of its divisors is an integer number (745500).

Almost surely, 2^30285528 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 30285528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47712000).

30285528 is an abundant number, since it is smaller than the sum of its proper divisors (65138472).

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

30285528 is a wasteful number, since it uses less digits than its factorization.

30285528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 30285528 is about 5503.2288703996. The cubic root of 30285528 is about 311.7059194781.

The spelling of 30285528 in words is "thirty million, two hundred eighty-five thousand, five hundred twenty-eight".