43243928 has 64 divisors (see below), whose sum is σ = 100638720. Its totient is φ = 16963200.

The previous prime is 43243909. The next prime is 43243931. The reversal of 43243928 is 82934234.

It is a happy number.

43243928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138893 + ... + 139203.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 2^43243928 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 43243928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50319360).

43243928 is an abundant number, since it is smaller than the sum of its proper divisors (57394792).

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

43243928 is a wasteful number, since it uses less digits than its factorization.

43243928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 524 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 43243928 is about 6576.0115571675. The cubic root of 43243928 is about 351.0010200104.

The spelling of 43243928 in words is "forty-three million, two hundred forty-three thousand, nine hundred twenty-eight".