40605859 has 6 divisors (see below), whose sum is σ = 47235444. Its totient is φ = 34804980.

The previous prime is 40605853. The next prime is 40605881. The reversal of 40605859 is 95850604.

40605859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40605859 - 2⁷ = 40605731 is a prime.

It is a Duffinian number.

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 (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 414297 + ... + 414394.

It is an arithmetic number, because the mean of its divisors is an integer number (7872574).

Almost surely, 2^40605859 is an apocalyptic number.

40605859 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

40605859 is a deficient number, since it is larger than the sum of its proper divisors (6629585).

40605859 is an equidigital number, since it uses as much as digits as its factorization.

40605859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828705 (or 828698 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 40605859 is about 6372.2726715043. The cubic root of 40605859 is about 343.7132181471.

The spelling of 40605859 in words is "forty million, six hundred five thousand, eight hundred fifty-nine".