39941913 has 32 divisors (see below), whose sum is σ = 60746112. Its totient is φ = 23129600.

The previous prime is 39941893. The next prime is 39941917. The reversal of 39941913 is 31914993.

39941913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 39941913 - 2²² = 35747609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39941917) 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 31 ways as a sum of consecutive naturals, for example, 71431 + ... + 71987.

It is an arithmetic number, because the mean of its divisors is an integer number (1898316).

Almost surely, 2^39941913 is an apocalyptic number.

39941913 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

39941913 is a deficient number, since it is larger than the sum of its proper divisors (20804199).

39941913 is a wasteful number, since it uses less digits than its factorization.

39941913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its digits is 26244, while the sum is 39.

The square root of 39941913 is about 6319.9614714015. The cubic root of 39941913 is about 341.8295635155.

The spelling of 39941913 in words is "thirty-nine million, nine hundred forty-one thousand, nine hundred thirteen".