12023236 has 6 divisors (see below), whose sum is σ = 21040670. Its totient is φ = 6011616.

The previous prime is 12023191. The next prime is 12023239. The reversal of 12023236 is 63232021.

It can be written as a sum of positive squares in only one way, i.e., 8761600 + 3261636 = 2960^2 + 1806^2 .

It is not an unprimeable number, because it can be changed into a prime (12023239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502901 + ... + 1502908.

Almost surely, 2^12023236 is an apocalyptic number.

It is an amenable number.

12023236 is a deficient number, since it is larger than the sum of its proper divisors (9017434).

12023236 is a wasteful number, since it uses less digits than its factorization.

12023236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005813 (or 3005811 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 12023236 is about 3467.4538208893. The cubic root of 12023236 is about 229.0905231255.

Adding to 12023236 its reverse (63232021), we get a palindrome (75255257).

The spelling of 12023236 in words is "twelve million, twenty-three thousand, two hundred thirty-six".