475522638 has 16 divisors (see below), whose sum is σ = 973163136. Its totient is φ = 154821240.

The previous prime is 475522627. The next prime is 475522661. The reversal of 475522638 is 836225574.

It is a super-2 number, since 2×475522638² = 452243558500958088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 475522638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921298 + ... + 921813.

It is an arithmetic number, because the mean of its divisors is an integer number (60822696).

Almost surely, 2^475522638 is an apocalyptic number.

475522638 is an abundant number, since it is smaller than the sum of its proper divisors (497640498).

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

475522638 is a wasteful number, since it uses less digits than its factorization.

475522638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843159.

The product of its digits is 403200, while the sum is 42.

The square root of 475522638 is about 21806.4815593896. The cubic root of 475522638 is about 780.5314359945.

The spelling of 475522638 in words is "four hundred seventy-five million, five hundred twenty-two thousand, six hundred thirty-eight".