475261218 has 12 divisors (see below), whose sum is σ = 1029732678. Its totient is φ = 158420400.

The previous prime is 475261211. The next prime is 475261223. The reversal of 475261218 is 812162574.

475261218 is a `hidden beast` number, since 4 + 7 + 526 + 121 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 474499089 + 762129 = 21783^2 + 873^2 .

It is not an unprimeable number, because it can be changed into a prime (475261211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13201683 + ... + 13201718.

Almost surely, 2^475261218 is an apocalyptic number.

475261218 is an abundant number, since it is smaller than the sum of its proper divisors (554471460).

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

475261218 is a wasteful number, since it uses less digits than its factorization.

475261218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26403409 (or 26403406 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 475261218 is about 21800.4866459444. The cubic root of 475261218 is about 780.3883766076.

The spelling of 475261218 in words is "four hundred seventy-five million, two hundred sixty-one thousand, two hundred eighteen".