30828330 has 64 divisors (see below), whose sum is σ = 88542720. Its totient is φ = 7587648.

The previous prime is 30828323. The next prime is 30828341. The reversal of 30828330 is 3382803.

30828330 is a `hidden beast` number, since 308 + 28 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30828294 and 30828303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 882 + ... + 7901.

It is an arithmetic number, because the mean of its divisors is an integer number (1383480).

Almost surely, 2^30828330 is an apocalyptic number.

30828330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30828330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44271360).

30828330 is an abundant number, since it is smaller than the sum of its proper divisors (57714390).

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

30828330 is a wasteful number, since it uses less digits than its factorization.

30828330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812 (or 8806 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30828330 is about 5552.3265393887. The cubic root of 30828330 is about 313.5571196945.

The spelling of 30828330 in words is "thirty million, eight hundred twenty-eight thousand, three hundred thirty".