475031238 has 64 divisors (see below), whose sum is σ = 1106784000. Its totient is φ = 135442560.

The previous prime is 475031237. The next prime is 475031239. The reversal of 475031238 is 832130574.

It is an interprime number because it is at equal distance from previous prime (475031237) and next prime (475031239).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 475031199 and 475031208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475031237) 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 31 ways as a sum of consecutive naturals, for example, 134013 + ... + 137511.

It is an arithmetic number, because the mean of its divisors is an integer number (17293500).

Almost surely, 2^475031238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475031238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553392000).

475031238 is an abundant number, since it is smaller than the sum of its proper divisors (631752762).

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

475031238 is a wasteful number, since it uses less digits than its factorization.

475031238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554 (or 3532 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 475031238 is about 21795.2113547908. The cubic root of 475031238 is about 780.2624790527.

The spelling of 475031238 in words is "four hundred seventy-five million, thirty-one thousand, two hundred thirty-eight".