40085938 has 8 divisors (see below), whose sum is σ = 60498288. Its totient is φ = 19919844.

The previous prime is 40085923. The next prime is 40085939. The reversal of 40085938 is 83958004.

40085938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40085897 and 40085906.

It is not an unprimeable number, because it can be changed into a prime (40085939) 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 3 ways as a sum of consecutive naturals, for example, 61156 + ... + 61807.

It is an arithmetic number, because the mean of its divisors is an integer number (7562286).

Almost surely, 2^40085938 is an apocalyptic number.

40085938 is a deficient number, since it is larger than the sum of its proper divisors (20412350).

40085938 is a wasteful number, since it uses less digits than its factorization.

40085938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123128.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 40085938 is about 6331.3456705506. The cubic root of 40085938 is about 342.2399339999.

The spelling of 40085938 in words is "forty million, eighty-five thousand, nine hundred thirty-eight".