39105906 has 32 divisors (see below), whose sum is σ = 89622528. Its totient is φ = 11143440.

The previous prime is 39105893. The next prime is 39105917. The reversal of 39105906 is 60950193.

39105906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 18441 + ... + 20451.

It is an arithmetic number, because the mean of its divisors is an integer number (2800704).

Almost surely, 2^39105906 is an apocalyptic number.

39105906 is an abundant number, since it is smaller than the sum of its proper divisors (50516622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39105906 is a wasteful number, since it uses less digits than its factorization.

39105906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 39105906 is about 6253.4715158862. The cubic root of 39105906 is about 339.4278323645.

The spelling of 39105906 in words is "thirty-nine million, one hundred five thousand, nine hundred six".