30385239 has 16 divisors (see below), whose sum is σ = 44282880. Its totient is φ = 18449280.

The previous prime is 30385213. The next prime is 30385247. The reversal of 30385239 is 93258303.

It is not a de Polignac number, because 30385239 - 2⁵ = 30385207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30385279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8029 + ... + 11190.

It is an arithmetic number, because the mean of its divisors is an integer number (2767680).

Almost surely, 2^30385239 is an apocalyptic number.

30385239 is a deficient number, since it is larger than the sum of its proper divisors (13897641).

30385239 is a wasteful number, since it uses less digits than its factorization.

30385239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19270.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 30385239 is about 5512.2807439389. The cubic root of 30385239 is about 312.0476279197.

The spelling of 30385239 in words is "thirty million, three hundred eighty-five thousand, two hundred thirty-nine".