40085775 has 36 divisors (see below), whose sum is σ = 72304648. Its totient is φ = 21228480.

The previous prime is 40085767. The next prime is 40085807. The reversal of 40085775 is 57758004.

40085775 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 40085775 - 2³ = 40085767 is a prime.

It is a Duffinian number.

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 35 ways as a sum of consecutive naturals, for example, 36129 + ... + 37221.

Almost surely, 2^40085775 is an apocalyptic number.

40085775 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40085775 is a deficient number, since it is larger than the sum of its proper divisors (32218873).

40085775 is a wasteful number, since it uses less digits than its factorization.

40085775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1264 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 40085775 is about 6331.3327980766. The cubic root of 40085775 is about 342.2394701200.

The spelling of 40085775 in words is "forty million, eighty-five thousand, seven hundred seventy-five".