30939194 has 16 divisors (see below), whose sum is σ = 54522720. Its totient is φ = 12981360.

The previous prime is 30939191. The next prime is 30939203. The reversal of 30939194 is 49193903.

It is not an unprimeable number, because it can be changed into a prime (30939191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53804 + ... + 54375.

It is an arithmetic number, because the mean of its divisors is an integer number (3407670).

Almost surely, 2^30939194 is an apocalyptic number.

30939194 is a deficient number, since it is larger than the sum of its proper divisors (23583526).

30939194 is a wasteful number, since it uses less digits than its factorization.

30939194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108205.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 30939194 is about 5562.3011425129. The cubic root of 30939194 is about 313.9325385520.

The spelling of 30939194 in words is "thirty million, nine hundred thirty-nine thousand, one hundred ninety-four".