40993165 has 16 divisors (see below), whose sum is σ = 52888320. Its totient is φ = 30404160.

The previous prime is 40993163. The next prime is 40993181. The reversal of 40993165 is 56139904.

It is not a de Polignac number, because 40993165 - 2¹ = 40993163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40993163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (3305520).

Almost surely, 2^40993165 is an apocalyptic number.

It is an amenable number.

40993165 is a deficient number, since it is larger than the sum of its proper divisors (11895155).

40993165 is a wasteful number, since it uses less digits than its factorization.

40993165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9252.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 40993165 is about 6402.5904913558. The cubic root of 40993165 is about 344.8025615386.

The spelling of 40993165 in words is "forty million, nine hundred ninety-three thousand, one hundred sixty-five".