12708228 has 24 divisors (see below), whose sum is σ = 31933888. Its totient is φ = 3910176.

The previous prime is 12708217. The next prime is 12708229. The reversal of 12708228 is 82280721.

It is a happy number.

It is a super-2 number, since 2×12708228² = 322998117799968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12708195 and 12708204.

It is not an unprimeable number, because it can be changed into a prime (12708229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40576 + ... + 40887.

Almost surely, 2^12708228 is an apocalyptic number.

It is an amenable number.

12708228 is an abundant number, since it is smaller than the sum of its proper divisors (19225660).

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

12708228 is a wasteful number, since it uses less digits than its factorization.

12708228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81483 (or 81481 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 12708228 is about 3564.8601655605. The cubic root of 12708228 is about 233.3610298189.

Adding to 12708228 its reverse (82280721), we get a palindrome (94988949).

The spelling of 12708228 in words is "twelve million, seven hundred eight thousand, two hundred twenty-eight".