30681068 has 24 divisors (see below), whose sum is σ = 58741200. Its totient is φ = 13905920.

The previous prime is 30681061. The next prime is 30681127. The reversal of 30681068 is 86018603.

It is not an unprimeable number, because it can be changed into a prime (30681061) 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, 18980 + ... + 20532.

It is an arithmetic number, because the mean of its divisors is an integer number (2447550).

Almost surely, 2^30681068 is an apocalyptic number.

It is an amenable number.

30681068 is a deficient number, since it is larger than the sum of its proper divisors (28060132).

30681068 is a wasteful number, since it uses less digits than its factorization.

30681068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 30681068 is about 5539.0493769238. The cubic root of 30681068 is about 313.0570518683.

The spelling of 30681068 in words is "thirty million, six hundred eighty-one thousand, sixty-eight".