12036224 has 16 divisors (see below), whose sum is σ = 23978670. Its totient is φ = 6018048.

The previous prime is 12036223. The next prime is 12036229. The reversal of 12036224 is 42263021.

It can be written as a sum of positive squares in only one way, i.e., 9985600 + 2050624 = 3160^2 + 1432^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 12036196 and 12036205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12036223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46889 + ... + 47144.

Almost surely, 2^12036224 is an apocalyptic number.

It is an amenable number.

12036224 is a deficient number, since it is larger than the sum of its proper divisors (11942446).

12036224 is an frugal number, since it uses more digits than its factorization.

12036224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94047 (or 94035 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 12036224 is about 3469.3261593572. The cubic root of 12036224 is about 229.1729844796.

Adding to 12036224 its reverse (42263021), we get a palindrome (54299245).

The spelling of 12036224 in words is "twelve million, thirty-six thousand, two hundred twenty-four".