12443972 has 6 divisors (see below), whose sum is σ = 21776958. Its totient is φ = 6221984.

The previous prime is 12443971. The next prime is 12443999. The reversal of 12443972 is 27934421.

12443972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7974976 + 4468996 = 2824^2 + 2114^2 .

It is not an unprimeable number, because it can be changed into a prime (12443971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555493 + ... + 1555500.

It is an arithmetic number, because the mean of its divisors is an integer number (3629493).

Almost surely, 2^12443972 is an apocalyptic number.

It is an amenable number.

12443972 is a deficient number, since it is larger than the sum of its proper divisors (9332986).

12443972 is a wasteful number, since it uses less digits than its factorization.

12443972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110997 (or 3110995 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 12443972 is about 3527.6014514114. The cubic root of 12443972 is about 231.7321770693.

The spelling of 12443972 in words is "twelve million, four hundred forty-three thousand, nine hundred seventy-two".