43972032 has 112 divisors (see below), whose sum is σ = 127447040. Its totient is φ = 13298688.

The previous prime is 43972009. The next prime is 43972037. The reversal of 43972032 is 23027934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43972037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197073 + ... + 197295.

It is an arithmetic number, because the mean of its divisors is an integer number (1137920).

Almost surely, 2^43972032 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 43972032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63723520).

43972032 is an abundant number, since it is smaller than the sum of its proper divisors (83475008).

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

43972032 is a wasteful number, since it uses less digits than its factorization.

43972032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 43972032 is about 6631.1410782760. The cubic root of 43972032 is about 352.9600170857.

Adding to 43972032 its reverse (23027934), we get a palindrome (66999966).

The spelling of 43972032 in words is "forty-three million, nine hundred seventy-two thousand, thirty-two".