12443516 has 6 divisors (see below), whose sum is σ = 21776160. Its totient is φ = 6221756.

The previous prime is 12443491. The next prime is 12443521. The reversal of 12443516 is 61534421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555436 + ... + 1555443.

It is an arithmetic number, because the mean of its divisors is an integer number (3629360).

Almost surely, 2^12443516 is an apocalyptic number.

It is an amenable number.

12443516 is a deficient number, since it is larger than the sum of its proper divisors (9332644).

12443516 is a wasteful number, since it uses less digits than its factorization.

12443516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110883 (or 3110881 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 12443516 is about 3527.5368176675. The cubic root of 12443516 is about 231.7293464843.

Adding to 12443516 its reverse (61534421), we get a palindrome (73977937).

The spelling of 12443516 in words is "twelve million, four hundred forty-three thousand, five hundred sixteen".