40164005 has 16 divisors (see below), whose sum is σ = 57982080. Its totient is φ = 26091072.

The previous prime is 40163999. The next prime is 40164017. The reversal of 40164005 is 50046104.

It is a happy number.

40164005 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 40164005 - 2⁸ = 40163749 is a prime.

It is a super-2 number, since 2×40164005² = 3226294595280050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 29534 + ... + 30863.

It is an arithmetic number, because the mean of its divisors is an integer number (3623880).

Almost surely, 2^40164005 is an apocalyptic number.

It is an amenable number.

40164005 is a deficient number, since it is larger than the sum of its proper divisors (17818075).

40164005 is a wasteful number, since it uses less digits than its factorization.

40164005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60428.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 40164005 is about 6337.5077909222. The cubic root of 40164005 is about 342.4619596517.

The spelling of 40164005 in words is "forty million, one hundred sixty-four thousand, five".