475384668 has 96 divisors (see below), whose sum is σ = 1312754688. Its totient is φ = 132249600.

The previous prime is 475384667. The next prime is 475384691. The reversal of 475384668 is 866483574.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 475384668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475384667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89421 + ... + 94587.

It is an arithmetic number, because the mean of its divisors is an integer number (13674528).

Almost surely, 2^475384668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475384668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656377344).

475384668 is an abundant number, since it is smaller than the sum of its proper divisors (837370020).

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

475384668 is a wasteful number, since it uses less digits than its factorization.

475384668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5243 (or 5241 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 51.

The square root of 475384668 is about 21803.3178209189. The cubic root of 475384668 is about 780.4559398769.

The spelling of 475384668 in words is "four hundred seventy-five million, three hundred eighty-four thousand, six hundred sixty-eight".