168044478 has 16 divisors (see below), whose sum is σ = 384101760. Its totient is φ = 48012696.

The previous prime is 168044453. The next prime is 168044489. The reversal of 168044478 is 874440861.

It is a happy number.

168044478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 4001059 = 168044478 / (1 + 6 + 8 + 0 + 4 + 4 + 4 + 7 + 8).

It is a congruent number.

It is an unprimeable number.

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, 2000488 + ... + 2000571.

It is an arithmetic number, because the mean of its divisors is an integer number (24006360).

Almost surely, 2^168044478 is an apocalyptic number.

168044478 is an abundant number, since it is smaller than the sum of its proper divisors (216057282).

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

168044478 is a wasteful number, since it uses less digits than its factorization.

168044478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001071.

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 168044478 is about 12963.1970593677. The cubic root of 168044478 is about 551.8335259912.

The spelling of 168044478 in words is "one hundred sixty-eight million, forty-four thousand, four hundred seventy-eight".