30282812 has 48 divisors (see below), whose sum is σ = 64350720. Its totient is φ = 12188352.

The previous prime is 30282803. The next prime is 30282817. The reversal of 30282812 is 21828203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30282817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37598 + ... + 38394.

It is an arithmetic number, because the mean of its divisors is an integer number (1340640).

Almost surely, 2^30282812 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 30282812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32175360).

30282812 is an abundant number, since it is smaller than the sum of its proper divisors (34067908).

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

30282812 is a wasteful number, since it uses less digits than its factorization.

30282812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 30282812 is about 5502.9821006433. The cubic root of 30282812 is about 311.6966012916.

The spelling of 30282812 in words is "thirty million, two hundred eighty-two thousand, eight hundred twelve".