30889228 has 24 divisors (see below), whose sum is σ = 56038752. Its totient is φ = 14886144.

The previous prime is 30889223. The next prime is 30889247. The reversal of 30889228 is 82298803.

It is not an unprimeable number, because it can be changed into a prime (30889223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15801 + ... + 17647.

It is an arithmetic number, because the mean of its divisors is an integer number (2334948).

Almost surely, 2^30889228 is an apocalyptic number.

It is an amenable number.

30889228 is a deficient number, since it is larger than the sum of its proper divisors (25149524).

30889228 is a wasteful number, since it uses less digits than its factorization.

30889228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 30889228 is about 5557.8078412266. The cubic root of 30889228 is about 313.7634498448.

The spelling of 30889228 in words is "thirty million, eight hundred eighty-nine thousand, two hundred twenty-eight".