12224004 has 48 divisors (see below), whose sum is σ = 31008768. Its totient is φ = 3725568.

The previous prime is 12223987. The next prime is 12224021. The reversal of 12224004 is 40042221.

It is an interprime number because it is at equal distance from previous prime (12223987) and next prime (12224021).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19504 + ... + 20120.

It is an arithmetic number, because the mean of its divisors is an integer number (646016).

Almost surely, 2^12224004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12224004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15504384).

12224004 is an abundant number, since it is smaller than the sum of its proper divisors (18784764).

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

12224004 is a wasteful number, since it uses less digits than its factorization.

12224004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12224004 is about 3496.2843133819. The cubic root of 12224004 is about 230.3586339461.

Adding to 12224004 its reverse (40042221), we get a palindrome (52266225).

The spelling of 12224004 in words is "twelve million, two hundred twenty-four thousand, four".