40605856 has 24 divisors (see below), whose sum is σ = 83420064. Its totient is φ = 19419840.

The previous prime is 40605853. The next prime is 40605881. The reversal of 40605856 is 65850604.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40605853) by changing a digit.

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, 26850 + ... + 28321.

It is an arithmetic number, because the mean of its divisors is an integer number (3475836).

Almost surely, 2^40605856 is an apocalyptic number.

40605856 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

40605856 is an abundant number, since it is smaller than the sum of its proper divisors (42814208).

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

40605856 is a wasteful number, since it uses less digits than its factorization.

40605856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55204 (or 55196 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 40605856 is about 6372.2724361094. The cubic root of 40605856 is about 343.7132096824.

The spelling of 40605856 in words is "forty million, six hundred five thousand, eight hundred fifty-six".