40705845 has 16 divisors (see below), whose sum is σ = 65214720. Its totient is φ = 21681344.

The previous prime is 40705843. The next prime is 40705859. The reversal of 40705845 is 54850704.

It is a cyclic number.

It is not a de Polignac number, because 40705845 - 2¹ = 40705843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40705843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15412 + ... + 17858.

It is an arithmetic number, because the mean of its divisors is an integer number (4075920).

Almost surely, 2^40705845 is an apocalyptic number.

It is an amenable number.

40705845 is a deficient number, since it is larger than the sum of its proper divisors (24508875).

40705845 is a wasteful number, since it uses less digits than its factorization.

40705845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 40705845 is about 6380.1132435091. The cubic root of 40705845 is about 343.9951014491.

The spelling of 40705845 in words is "forty million, seven hundred five thousand, eight hundred forty-five".