40422009 has 8 divisors (see below), whose sum is σ = 54578560. Its totient is φ = 26606736.

The previous prime is 40422007. The next prime is 40422013. The reversal of 40422009 is 90022404.

40422009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40422009 - 2¹ = 40422007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40422007) 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, 85042 + ... + 85515.

It is an arithmetic number, because the mean of its divisors is an integer number (6822320).

Almost surely, 2^40422009 is an apocalyptic number.

It is an amenable number.

40422009 is a deficient number, since it is larger than the sum of its proper divisors (14156551).

40422009 is a wasteful number, since it uses less digits than its factorization.

40422009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170639.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40422009 is about 6357.8305262094. The cubic root of 40422009 is about 343.1936930693.

The spelling of 40422009 in words is "forty million, four hundred twenty-two thousand, nine".