40135566 has 16 divisors (see below), whose sum is σ = 80982864. Its totient is φ = 13259904.

The previous prime is 40135549. The next prime is 40135573. The reversal of 40135566 is 66553104.

40135566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40135566² = 3221727316280712, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 28921 + ... + 30276.

It is an arithmetic number, because the mean of its divisors is an integer number (5061429).

Almost surely, 2^40135566 is an apocalyptic number.

40135566 is an abundant number, since it is smaller than the sum of its proper divisors (40847298).

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

40135566 is a wasteful number, since it uses less digits than its factorization.

40135566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59315.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 40135566 is about 6335.2636882769. The cubic root of 40135566 is about 342.3811113459.

The spelling of 40135566 in words is "forty million, one hundred thirty-five thousand, five hundred sixty-six".