40805670 has 16 divisors (see below), whose sum is σ = 97933680. Its totient is φ = 10881504.

The previous prime is 40805663. The next prime is 40805671. The reversal of 40805670 is 7650804.

It is a happy number.

40805670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1360189 = 40805670 / (4 + 0 + 8 + 0 + 5 + 6 + 7 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40805671) 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 7 ways as a sum of consecutive naturals, for example, 680065 + ... + 680124.

It is an arithmetic number, because the mean of its divisors is an integer number (6120855).

Almost surely, 2^40805670 is an apocalyptic number.

40805670 is an abundant number, since it is smaller than the sum of its proper divisors (57128010).

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

40805670 is a wasteful number, since it uses less digits than its factorization.

40805670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360199.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 40805670 is about 6387.9315901158. The cubic root of 40805670 is about 344.2760707506.

The spelling of 40805670 in words is "forty million, eight hundred five thousand, six hundred seventy".