39940910 has 16 divisors (see below), whose sum is σ = 72000576. Its totient is φ = 15952608.

The previous prime is 39940897. The next prime is 39940919. The reversal of 39940910 is 1904993.

39940910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39940919) 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 7 ways as a sum of consecutive naturals, for example, 5147 + ... + 10313.

It is an arithmetic number, because the mean of its divisors is an integer number (4500036).

Almost surely, 2^39940910 is an apocalyptic number.

39940910 is a deficient number, since it is larger than the sum of its proper divisors (32059666).

39940910 is a wasteful number, since it uses less digits than its factorization.

39940910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5947.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 39940910 is about 6319.8821191538. The cubic root of 39940910 is about 341.8267022111.

The spelling of 39940910 in words is "thirty-nine million, nine hundred forty thousand, nine hundred ten".