12224628 has 48 divisors (see below), whose sum is σ = 34135360. Its totient is φ = 3760992.

The previous prime is 12224617. The next prime is 12224629. The reversal of 12224628 is 82642221.

It is a happy number.

12224628 is a `hidden beast` number, since 12 + 2 + 24 + 628 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2950 + ... + 5757.

Almost surely, 2^12224628 is an apocalyptic number.

12224628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12224628 is an abundant number, since it is smaller than the sum of its proper divisors (21910732).

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

12224628 is a wasteful number, since it uses less digits than its factorization.

12224628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8733 (or 8725 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 12224628 is about 3496.3735498370. The cubic root of 12224628 is about 230.3625535931.

Adding to 12224628 its reverse (82642221), we get a palindrome (94866849).

The spelling of 12224628 in words is "twelve million, two hundred twenty-four thousand, six hundred twenty-eight".