40575909 has 16 divisors (see below), whose sum is σ = 59157504. Its totient is φ = 24534000.

The previous prime is 40575877. The next prime is 40575917. The reversal of 40575909 is 90957504.

40575909 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 40575909 - 2⁵ = 40575877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40575929) 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 15 ways as a sum of consecutive naturals, for example, 16084 + ... + 18434.

It is an arithmetic number, because the mean of its divisors is an integer number (3697344).

Almost surely, 2^40575909 is an apocalyptic number.

It is an amenable number.

40575909 is a deficient number, since it is larger than the sum of its proper divisors (18581595).

40575909 is a wasteful number, since it uses less digits than its factorization.

40575909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 40575909 is about 6369.9222130258. The cubic root of 40575909 is about 343.6286922264.

The spelling of 40575909 in words is "forty million, five hundred seventy-five thousand, nine hundred nine".