190404168 has 32 divisors (see below), whose sum is σ = 501064800. Its totient is φ = 60127488.

The previous prime is 190404167. The next prime is 190404223. The reversal of 190404168 is 861404091.

It is not an unprimeable number, because it can be changed into a prime (190404161) 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, 208321 + ... + 209232.

It is an arithmetic number, because the mean of its divisors is an integer number (15658275).

Almost surely, 2^190404168 is an apocalyptic number.

It is an amenable number.

190404168 is an abundant number, since it is smaller than the sum of its proper divisors (310660632).

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

190404168 is a wasteful number, since it uses less digits than its factorization.

190404168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417581 (or 417577 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 190404168 is about 13798.7016780565. The cubic root of 190404168 is about 575.2970543240.

The spelling of 190404168 in words is "one hundred ninety million, four hundred four thousand, one hundred sixty-eight".