39939166 has 16 divisors (see below), whose sum is σ = 61549488. Its totient is φ = 19425600.

The previous prime is 39939139. The next prime is 39939173. The reversal of 39939166 is 66193993.

39939166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 46396 + ... + 47248.

It is an arithmetic number, because the mean of its divisors is an integer number (3846843).

Almost surely, 2^39939166 is an apocalyptic number.

39939166 is a deficient number, since it is larger than the sum of its proper divisors (21610322).

39939166 is a wasteful number, since it uses less digits than its factorization.

39939166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467.

The product of its digits is 236196, while the sum is 46.

The square root of 39939166 is about 6319.7441403905. The cubic root of 39939166 is about 341.8217269076.

The spelling of 39939166 in words is "thirty-nine million, nine hundred thirty-nine thousand, one hundred sixty-six".