12040224 has 192 divisors, whose sum is σ = 40642560. Its totient is φ = 3041280.

The previous prime is 12040213. The next prime is 12040253. The reversal of 12040224 is 42204021.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 293644 + ... + 293684.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

Almost surely, 2^12040224 is an apocalyptic number.

12040224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12040224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20321280).

12040224 is an abundant number, since it is smaller than the sum of its proper divisors (28602336).

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

12040224 is a wasteful number, since it uses less digits than its factorization.

12040224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 95 counting only the distinct ones).

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

The square root of 12040224 is about 3469.9025922928. The cubic root of 12040224 is about 229.1983686978.

Adding to 12040224 its reverse (42204021), we get a palindrome (54244245).

The spelling of 12040224 in words is "twelve million, forty thousand, two hundred twenty-four".