30068889 has 12 divisors (see below), whose sum is σ = 41912976. Its totient is φ = 19173352.

The previous prime is 30068881. The next prime is 30068891. The reversal of 30068889 is 98886003.

It is not a de Polignac number, because 30068889 - 2³ = 30068881 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 30068889.

It is not an unprimeable number, because it can be changed into a prime (30068881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7887 + ... + 11060.

It is an arithmetic number, because the mean of its divisors is an integer number (3492748).

Almost surely, 2^30068889 is an apocalyptic number.

It is an amenable number.

30068889 is a deficient number, since it is larger than the sum of its proper divisors (11844087).

30068889 is a wasteful number, since it uses less digits than its factorization.

30068889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18996 (or 18973 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 30068889 is about 5483.5106455627. The cubic root of 30068889 is about 310.9609067116.

The spelling of 30068889 in words is "thirty million, sixty-eight thousand, eight hundred eighty-nine".