40931768 has 16 divisors (see below), whose sum is σ = 78821880. Its totient is φ = 19912608.

The previous prime is 40931701. The next prime is 40931777. The reversal of 40931768 is 86713904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68846 + ... + 69437.

Almost surely, 2^40931768 is an apocalyptic number.

It is an amenable number.

40931768 is a deficient number, since it is larger than the sum of its proper divisors (37890112).

40931768 is a wasteful number, since it uses less digits than its factorization.

40931768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138326 (or 138322 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 40931768 is about 6397.7939948079. The cubic root of 40931768 is about 344.6303342853.

The spelling of 40931768 in words is "forty million, nine hundred thirty-one thousand, seven hundred sixty-eight".