478178118 has 48 divisors (see below), whose sum is σ = 1141261056. Its totient is φ = 143489520.

The previous prime is 478178093. The next prime is 478178161. The reversal of 478178118 is 811871874.

478178118 is a `hidden beast` number, since 478 + 178 + 1 + 1 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8671 + ... + 32117.

It is an arithmetic number, because the mean of its divisors is an integer number (23776272).

Almost surely, 2^478178118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478178118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570630528).

478178118 is an abundant number, since it is smaller than the sum of its proper divisors (663082938).

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

478178118 is a wasteful number, since it uses less digits than its factorization.

478178118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23569 (or 23566 counting only the distinct ones).

The product of its digits is 100352, while the sum is 45.

The square root of 478178118 is about 21867.2841935161. The cubic root of 478178118 is about 781.9816574169.

The spelling of 478178118 in words is "four hundred seventy-eight million, one hundred seventy-eight thousand, one hundred eighteen".