30385388 has 24 divisors (see below), whose sum is σ = 60011280. Its totient is φ = 13334720.

The previous prime is 30385357. The next prime is 30385393. The reversal of 30385388 is 88358303.

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, 10631 + ... + 13182.

It is an arithmetic number, because the mean of its divisors is an integer number (2500470).

Almost surely, 2^30385388 is an apocalyptic number.

It is an amenable number.

30385388 is a deficient number, since it is larger than the sum of its proper divisors (29625892).

30385388 is a wasteful number, since it uses less digits than its factorization.

30385388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23857 (or 23855 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 30385388 is about 5512.2942591992. The cubic root of 30385388 is about 312.0481379812.

The spelling of 30385388 in words is "thirty million, three hundred eighty-five thousand, three hundred eighty-eight".