4000168 has 32 divisors (see below), whose sum is σ = 8078400. Its totient is φ = 1850112.

The previous prime is 4000159. The next prime is 4000169. The reversal of 4000168 is 8610004.

It is not an unprimeable number, because it can be changed into a prime (4000169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8893 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (252450).

Almost surely, 2^4000168 is an apocalyptic number.

It is an amenable number.

4000168 is an abundant number, since it is smaller than the sum of its proper divisors (4078232).

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

4000168 is a wasteful number, since it uses less digits than its factorization.

4000168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 4000168 is about 2000.0419995590. The cubic root of 4000168 is about 158.7423275272.

The spelling of 4000168 in words is "four million, one hundred sixty-eight", and thus it is an aban number.