30385730 has 16 divisors (see below), whose sum is σ = 55059264. Its totient is φ = 12073200.

The previous prime is 30385717. The next prime is 30385741. The reversal of 30385730 is 3758303.

It is a junction number, because it is equal to n+sod(n) for n = 30385693 and 30385702.

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, 8552 + ... + 11571.

It is an arithmetic number, because the mean of its divisors is an integer number (3441204).

Almost surely, 2^30385730 is an apocalyptic number.

30385730 is a deficient number, since it is larger than the sum of its proper divisors (24673534).

30385730 is a wasteful number, since it uses less digits than its factorization.

30385730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20281.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 30385730 is about 5512.3252806778. The cubic root of 30385730 is about 312.0493087201.

The spelling of 30385730 in words is "thirty million, three hundred eighty-five thousand, seven hundred thirty".