40385934 has 12 divisors (see below), whose sum is σ = 87502896. Its totient is φ = 13461972.

The previous prime is 40385929. The next prime is 40385941. The reversal of 40385934 is 43958304.

40385934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1121814 + ... + 1121849.

It is an arithmetic number, because the mean of its divisors is an integer number (7291908).

Almost surely, 2^40385934 is an apocalyptic number.

40385934 is an abundant number, since it is smaller than the sum of its proper divisors (47116962).

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

40385934 is a wasteful number, since it uses less digits than its factorization.

40385934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243671 (or 2243668 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 40385934 is about 6354.9928402792. The cubic root of 40385934 is about 343.0915672085.

The spelling of 40385934 in words is "forty million, three hundred eighty-five thousand, nine hundred thirty-four".