40705805 has 16 divisors (see below), whose sum is σ = 55994880. Its totient is φ = 27827712.

The previous prime is 40705793. The next prime is 40705813. The reversal of 40705805 is 50850704.

It is a cyclic number.

It is not a de Polignac number, because 40705805 - 2⁸ = 40705549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11261 + ... + 14429.

It is an arithmetic number, because the mean of its divisors is an integer number (3499680).

Almost surely, 2^40705805 is an apocalyptic number.

It is an amenable number.

40705805 is a deficient number, since it is larger than the sum of its proper divisors (15289075).

40705805 is a wasteful number, since it uses less digits than its factorization.

40705805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 40705805 is about 6380.1101087677. The cubic root of 40705805 is about 343.9949887723.

The spelling of 40705805 in words is "forty million, seven hundred five thousand, eight hundred five".