30038930 has 16 divisors (see below), whose sum is σ = 54152280. Its totient is φ = 11997312.

The previous prime is 30038917. The next prime is 30038947. The reversal of 30038930 is 3983003.

It can be written as a sum of positive squares in 4 ways, for example, as 27552001 + 2486929 = 5249^2 + 1577^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30038930.

It is an unprimeable number.

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, 6086 + ... + 9854.

Almost surely, 2^30038930 is an apocalyptic number.

30038930 is a deficient number, since it is larger than the sum of its proper divisors (24113350).

30038930 is a wasteful number, since it uses less digits than its factorization.

30038930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4573.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 30038930 is about 5480.7782294123. The cubic root of 30038930 is about 310.8575975679.

The spelling of 30038930 in words is "thirty million, thirty-eight thousand, nine hundred thirty".