474332221 has 12 divisors (see below), whose sum is σ = 524020000. Its totient is φ = 429022440.

The previous prime is 474332219. The next prime is 474332227. The reversal of 474332221 is 122233474.

It is not a de Polignac number, because 474332221 - 2¹ = 474332219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 474332221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474332227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14230 + ... + 33928.

Almost surely, 2^474332221 is an apocalyptic number.

It is an amenable number.

474332221 is a deficient number, since it is larger than the sum of its proper divisors (49687779).

474332221 is a wasteful number, since it uses less digits than its factorization.

474332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19920 (or 19909 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 474332221 is about 21779.1694286077. The cubic root of 474332221 is about 779.8795677529.

Adding to 474332221 its reverse (122233474), we get a palindrome (596565695).

The spelling of 474332221 in words is "four hundred seventy-four million, three hundred thirty-two thousand, two hundred twenty-one".