12632228 has 24 divisors (see below), whose sum is σ = 25502400. Its totient is φ = 5362848.

The previous prime is 12632219. The next prime is 12632251. The reversal of 12632228 is 82223621.

It is a junction number, because it is equal to n+sod(n) for n = 12632197 and 12632206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (1062600).

Almost surely, 2^12632228 is an apocalyptic number.

It is an amenable number.

12632228 is an abundant number, since it is smaller than the sum of its proper divisors (12870172).

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

12632228 is a wasteful number, since it uses less digits than its factorization.

12632228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4259 (or 4257 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 12632228 is about 3554.1845759611. The cubic root of 12632228 is about 232.8949036978.

Adding to 12632228 its reverse (82223621), we get a palindrome (94855849).

The spelling of 12632228 in words is "twelve million, six hundred thirty-two thousand, two hundred twenty-eight".