404168 has 16 divisors (see below), whose sum is σ = 798000. Its totient is φ = 191376.

The previous prime is 404167. The next prime is 404177. The reversal of 404168 is 861404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (404161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178 + ... + 1481.

It is an arithmetic number, because the mean of its divisors is an integer number (49875).

2⁴⁰⁴¹⁶⁸ is an apocalyptic number.

It is an amenable number.

404168 is a deficient number, since it is larger than the sum of its proper divisors (393832).

404168 is a wasteful number, since it uses less digits than its factorization.

404168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 404168 is about 635.7420860695. The cubic root of 404168 is about 73.9356635847.

The spelling of 404168 in words is "four hundred four thousand, one hundred sixty-eight".