30889850 has 24 divisors (see below), whose sum is σ = 60836508. Its totient is φ = 11628800.

The previous prime is 30889847. The next prime is 30889883. The reversal of 30889850 is 5898803.

It can be written as a sum of positive squares in 6 ways, for example, as 20151121 + 10738729 = 4489^2 + 3277^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30889798 and 30889807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17321 + ... + 19020.

Almost surely, 2^30889850 is an apocalyptic number.

30889850 is a deficient number, since it is larger than the sum of its proper divisors (29946658).

30889850 is a wasteful number, since it uses less digits than its factorization.

30889850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36370 (or 36365 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 30889850 is about 5557.8637982592. The cubic root of 30889850 is about 313.7655558601.

It can be divided in two parts, 308898 and 50, that multiplied together give a square (15444900 = 3930²).

The spelling of 30889850 in words is "thirty million, eight hundred eighty-nine thousand, eight hundred fifty".