40165169 has 8 divisors (see below), whose sum is σ = 46394208. Its totient is φ = 34365760.

The previous prime is 40165163. The next prime is 40165187. The reversal of 40165169 is 96156104.

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

It is a de Polignac number, because none of the positive numbers 2^k-40165169 is a prime.

It is a super-2 number, since 2×40165169² = 3226481601597122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40165163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107207 + ... + 107580.

It is an arithmetic number, because the mean of its divisors is an integer number (5799276).

Almost surely, 2^40165169 is an apocalyptic number.

It is an amenable number.

40165169 is a deficient number, since it is larger than the sum of its proper divisors (6229039).

40165169 is a wasteful number, since it uses less digits than its factorization.

40165169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214815.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 40165169 is about 6337.5996244635. The cubic root of 40165169 is about 342.4652679363.

The spelling of 40165169 in words is "forty million, one hundred sixty-five thousand, one hundred sixty-nine".