40681910 has 32 divisors (see below), whose sum is σ = 74760192. Its totient is φ = 15936480.

The previous prime is 40681909. The next prime is 40681939. The reversal of 40681910 is 1918604.

40681910 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 15 ways as a sum of consecutive naturals, for example, 130655 + ... + 130965.

It is an arithmetic number, because the mean of its divisors is an integer number (2336256).

Almost surely, 2^40681910 is an apocalyptic number.

40681910 is a deficient number, since it is larger than the sum of its proper divisors (34078282).

40681910 is a wasteful number, since it uses less digits than its factorization.

40681910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 40681910 is about 6378.2372172882. The cubic root of 40681910 is about 343.9276652938.

The spelling of 40681910 in words is "forty million, six hundred eighty-one thousand, nine hundred ten".