40068168 has 64 divisors (see below), whose sum is σ = 115968000. Its totient is φ = 11299392.

The previous prime is 40068157. The next prime is 40068173. The reversal of 40068168 is 86186004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11763 + ... + 14781.

It is an arithmetic number, because the mean of its divisors is an integer number (1812000).

Almost surely, 2^40068168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40068168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57984000).

40068168 is an abundant number, since it is smaller than the sum of its proper divisors (75899832).

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

40068168 is a wasteful number, since it uses less digits than its factorization.

40068168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114 (or 3110 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 40068168 is about 6329.9421798307. The cubic root of 40068168 is about 342.1893551452.

The spelling of 40068168 in words is "forty million, sixty-eight thousand, one hundred sixty-eight".