30938085 has 16 divisors (see below), whose sum is σ = 55001280. Its totient is φ = 16500240.

The previous prime is 30938081. The next prime is 30938107. The reversal of 30938085 is 58083903.

It is not a de Polignac number, because 30938085 - 2² = 30938081 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30938081) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 114451 + ... + 114720.

It is an arithmetic number, because the mean of its divisors is an integer number (3437580).

Almost surely, 2^30938085 is an apocalyptic number.

It is an amenable number.

30938085 is a deficient number, since it is larger than the sum of its proper divisors (24063195).

30938085 is a wasteful number, since it uses less digits than its factorization.

30938085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229185 (or 229179 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 30938085 is about 5562.2014526624. The cubic root of 30938085 is about 313.9287875887.

The spelling of 30938085 in words is "thirty million, nine hundred thirty-eight thousand, eighty-five".