168415404 has 12 divisors (see below), whose sum is σ = 392969304. Its totient is φ = 56138464.

The previous prime is 168415399. The next prime is 168415417. The reversal of 168415404 is 404514861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7017297 + ... + 7017320.

It is an arithmetic number, because the mean of its divisors is an integer number (32747442).

Almost surely, 2^168415404 is an apocalyptic number.

It is an amenable number.

168415404 is an abundant number, since it is smaller than the sum of its proper divisors (224553900).

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

168415404 is a wasteful number, since it uses less digits than its factorization.

168415404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14034624 (or 14034622 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 168415404 is about 12977.4960604887. The cubic root of 168415404 is about 552.2392498906.

The spelling of 168415404 in words is "one hundred sixty-eight million, four hundred fifteen thousand, four hundred four".