4131228 has 12 divisors (see below), whose sum is σ = 9639560. Its totient is φ = 1377072.

The previous prime is 4131223. The next prime is 4131229. The reversal of 4131228 is 8221314.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131223) 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, 172123 + ... + 172146.

Almost surely, 2^4131228 is an apocalyptic number.

It is an amenable number.

4131228 is an abundant number, since it is smaller than the sum of its proper divisors (5508332).

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

4131228 is a wasteful number, since it uses less digits than its factorization.

4131228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344276 (or 344274 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 4131228 is about 2032.5422504834. The cubic root of 4131228 is about 160.4573891406.

The spelling of 4131228 in words is "four million, one hundred thirty-one thousand, two hundred twenty-eight".