30682928 has 40 divisors (see below), whose sum is σ = 62272800. Its totient is φ = 14626304.

The previous prime is 30682921. The next prime is 30682961. The reversal of 30682928 is 82928603.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30682891 and 30682900.

It is not an unprimeable number, because it can be changed into a prime (30682921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40925 + ... + 41667.

It is an arithmetic number, because the mean of its divisors is an integer number (1556820).

Almost surely, 2^30682928 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 30682928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31136400).

30682928 is an abundant number, since it is smaller than the sum of its proper divisors (31589872).

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

30682928 is a wasteful number, since it uses less digits than its factorization.

30682928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 30682928 is about 5539.2172732255. The cubic root of 30682928 is about 313.0633779665.

It can be divided in two parts, 30682 and 928, that multiplied together give a square (28472896 = 5336²).

The spelling of 30682928 in words is "thirty million, six hundred eighty-two thousand, nine hundred twenty-eight".