12443436 has 72 divisors (see below), whose sum is σ = 33655440. Its totient is φ = 3975552.

The previous prime is 12443429. The next prime is 12443449. The reversal of 12443436 is 63434421.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90760 + ... + 90896.

Almost surely, 2^12443436 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 12443436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16827720).

12443436 is an abundant number, since it is smaller than the sum of its proper divisors (21212004).

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

12443436 is a wasteful number, since it uses less digits than its factorization.

12443436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 171 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 12443436 is about 3527.5254782921. The cubic root of 12443436 is about 231.7288498833.

Adding to 12443436 its reverse (63434421), we get a palindrome (75877857).

The spelling of 12443436 in words is "twelve million, four hundred forty-three thousand, four hundred thirty-six".