39906068 has 12 divisors (see below), whose sum is σ = 70677600. Its totient is φ = 19712472.

The previous prime is 39906049. The next prime is 39906077. The reversal of 39906068 is 86060993.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 59768 + ... + 60431.

It is an arithmetic number, because the mean of its divisors is an integer number (5889800).

Almost surely, 2^39906068 is an apocalyptic number.

It is an amenable number.

39906068 is a deficient number, since it is larger than the sum of its proper divisors (30771532).

39906068 is a wasteful number, since it uses less digits than its factorization.

39906068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120286 (or 120284 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 39906068 is about 6317.1249789758. The cubic root of 39906068 is about 341.7272770786.

The spelling of 39906068 in words is "thirty-nine million, nine hundred six thousand, sixty-eight".