226728212 has 12 divisors (see below), whose sum is σ = 401233140. Its totient is φ = 112090176.

The previous prime is 226728157. The next prime is 226728217. The reversal of 226728212 is 212827622.

It can be written as a sum of positive squares in 2 ways, for example, as 105596176 + 121132036 = 10276^2 + 11006^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226728217) 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, 318083 + ... + 318794.

It is an arithmetic number, because the mean of its divisors is an integer number (33436095).

Almost surely, 2^226728212 is an apocalyptic number.

It is an amenable number.

226728212 is a deficient number, since it is larger than the sum of its proper divisors (174504928).

226728212 is a wasteful number, since it uses less digits than its factorization.

226728212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636970 (or 636968 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 226728212 is about 15057.4968703301. The cubic root of 226728212 is about 609.7734642111.

The spelling of 226728212 in words is "two hundred twenty-six million, seven hundred twenty-eight thousand, two hundred twelve".