30889208 has 32 divisors (see below), whose sum is σ = 67548000. Its totient is φ = 13237056.

The previous prime is 30889181. The next prime is 30889213. The reversal of 30889208 is 80298803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2885 + ... + 8372.

It is an arithmetic number, because the mean of its divisors is an integer number (2110875).

Almost surely, 2^30889208 is an apocalyptic number.

It is an amenable number.

30889208 is an abundant number, since it is smaller than the sum of its proper divisors (36658792).

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

30889208 is a wasteful number, since it uses less digits than its factorization.

30889208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11284 (or 11266 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 30889208 is about 5557.8060419558. The cubic root of 30889208 is about 313.7633821268.

The spelling of 30889208 in words is "thirty million, eight hundred eighty-nine thousand, two hundred eight".