40136168 has 8 divisors (see below), whose sum is σ = 75255330. Its totient is φ = 20068080.

The previous prime is 40136153. The next prime is 40136179. The reversal of 40136168 is 86163104.

40136168 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 only one way, i.e., 36457444 + 3678724 = 6038^2 + 1918^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40136168² = 3221823963448448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40136168.

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 as a sum of consecutive naturals, namely, 2508503 + ... + 2508518.

Almost surely, 2^40136168 is an apocalyptic number.

It is an amenable number.

40136168 is a deficient number, since it is larger than the sum of its proper divisors (35119162).

40136168 is a wasteful number, since it uses less digits than its factorization.

40136168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017027 (or 5017023 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40136168 is about 6335.3111999333. The cubic root of 40136168 is about 342.3828231477.

It can be divided in two parts, 40136 and 168, that added together give a palindrome (40304).

The spelling of 40136168 in words is "forty million, one hundred thirty-six thousand, one hundred sixty-eight".