40168168 has 16 divisors (see below), whose sum is σ = 75462660. Its totient is φ = 20044800.

The previous prime is 40168159. The next prime is 40168207. The reversal of 40168168 is 86186104.

40168168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38962564 + 1205604 = 6242^2 + 1098^2 .

It is a super-2 number, since 2×40168168² = 3226963440952448, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 313 + ... + 8968.

Almost surely, 2^40168168 is an apocalyptic number.

It is an amenable number.

40168168 is a deficient number, since it is larger than the sum of its proper divisors (35294492).

40168168 is a wasteful number, since it uses less digits than its factorization.

40168168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9828 (or 9824 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 40168168 is about 6337.8362238228. The cubic root of 40168168 is about 342.4737913062.

The spelling of 40168168 in words is "forty million, one hundred sixty-eight thousand, one hundred sixty-eight".