30068928 has 56 divisors (see below), whose sum is σ = 88402160. Its totient is φ = 10022400.

The previous prime is 30068923. The next prime is 30068953. The reversal of 30068928 is 82986003.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 30068892 and 30068901.

It is not an unprimeable number, because it can be changed into a prime (30068923) 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, 6973 + ... + 10428.

It is an arithmetic number, because the mean of its divisors is an integer number (1578610).

Almost surely, 2^30068928 is an apocalyptic number.

It is an amenable number.

30068928 is an abundant number, since it is smaller than the sum of its proper divisors (58333232).

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

30068928 is a wasteful number, since it uses less digits than its factorization.

30068928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17422 (or 17406 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 30068928 is about 5483.5142016776. The cubic root of 30068928 is about 310.9610411526.

The spelling of 30068928 in words is "thirty million, sixty-eight thousand, nine hundred twenty-eight".