40866465 has 16 divisors (see below), whose sum is σ = 65467008. Its totient is φ = 21768576.

The previous prime is 40866451. The next prime is 40866467. The reversal of 40866465 is 56466804.

40866465 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 40866465 - 2⁸ = 40866209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40866467) 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, 19509 + ... + 21501.

It is an arithmetic number, because the mean of its divisors is an integer number (4091688).

Almost surely, 2^40866465 is an apocalyptic number.

It is an amenable number.

40866465 is a deficient number, since it is larger than the sum of its proper divisors (24600543).

40866465 is a wasteful number, since it uses less digits than its factorization.

40866465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 40866465 is about 6392.6884016038. The cubic root of 40866465 is about 344.4469610368.

The spelling of 40866465 in words is "forty million, eight hundred sixty-six thousand, four hundred sixty-five".