475464636 has 72 divisors (see below), whose sum is σ = 1275674400. Its totient is φ = 148801536.

The previous prime is 475464623. The next prime is 475464637. The reversal of 475464636 is 636464574.

It is a happy number.

475464636 is a `hidden beast` number, since 4 + 7 + 5 + 4 + 6 + 4 + 636 = 666.

It is a super-2 number, since 2×475464636² = 452133240173224992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 475464591 and 475464600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475464637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365940 + ... + 367236.

It is an arithmetic number, because the mean of its divisors is an integer number (17717700).

Almost surely, 2^475464636 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 475464636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637837200).

475464636 is an abundant number, since it is smaller than the sum of its proper divisors (800209764).

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

475464636 is a wasteful number, since it uses less digits than its factorization.

475464636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923 (or 1918 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 475464636 is about 21805.1515931442. The cubic root of 475464636 is about 780.4996995278.

It can be divided in two parts, 475464 and 636, that added together give a square (476100 = 690²).

The spelling of 475464636 in words is "four hundred seventy-five million, four hundred sixty-four thousand, six hundred thirty-six".