43889472 has 112 divisors (see below), whose sum is σ = 140817600. Its totient is φ = 13294080.

The previous prime is 43889467. The next prime is 43889479. The reversal of 43889472 is 27498834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43889479) 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, 17854 + ... + 20162.

It is an arithmetic number, because the mean of its divisors is an integer number (1257300).

Almost surely, 2^43889472 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 43889472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70408800).

43889472 is an abundant number, since it is smaller than the sum of its proper divisors (96928128).

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

43889472 is a wasteful number, since it uses less digits than its factorization.

43889472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2325 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 43889472 is about 6624.9129805606. The cubic root of 43889472 is about 352.7389778304.

The spelling of 43889472 in words is "forty-three million, eight hundred eighty-nine thousand, four hundred seventy-two".