40168236 has 24 divisors (see below), whose sum is σ = 96260080. Its totient is φ = 13027392.

The previous prime is 40168231. The next prime is 40168237. The reversal of 40168236 is 63286104.

40168236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40168236² = 3226974366703392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40168231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44791 + ... + 45678.

Almost surely, 2^40168236 is an apocalyptic number.

It is an amenable number.

40168236 is an abundant number, since it is smaller than the sum of its proper divisors (56091844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40168236 is a wasteful number, since it uses less digits than its factorization.

40168236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90513 (or 90511 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 40168236 is about 6337.8415884274. The cubic root of 40168236 is about 342.4739845621.

It can be divided in two parts, 40168 and 236, that added together give a palindrome (40404).

The spelling of 40168236 in words is "forty million, one hundred sixty-eight thousand, two hundred thirty-six".