475011220 has 12 divisors (see below), whose sum is σ = 997523604. Its totient is φ = 190004480.

The previous prime is 475011169. The next prime is 475011221. The reversal of 475011220 is 22110574.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 335109636 + 139901584 = 18306^2 + 11828^2 .

It is a junction number, because it is equal to n+sod(n) for n = 475011191 and 475011200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475011221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11875261 + ... + 11875300.

It is an arithmetic number, because the mean of its divisors is an integer number (83126967).

Almost surely, 2^475011220 is an apocalyptic number.

It is an amenable number.

475011220 is an abundant number, since it is smaller than the sum of its proper divisors (522512384).

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

475011220 is a wasteful number, since it uses less digits than its factorization.

475011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23750570 (or 23750568 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 475011220 is about 21794.7521206367. The cubic root of 475011220 is about 780.2515187113.

Adding to 475011220 its reverse (22110574), we get a palindrome (497121794).

The spelling of 475011220 in words is "four hundred seventy-five million, eleven thousand, two hundred twenty".