43234728 has 64 divisors (see below), whose sum is σ = 115776000. Its totient is φ = 13413312.

The previous prime is 43234727. The next prime is 43234753. The reversal of 43234728 is 82743234.

43234728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (43234721) by changing a digit.

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, 26101 + ... + 27707.

It is an arithmetic number, because the mean of its divisors is an integer number (1809000).

Almost surely, 2^43234728 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 43234728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57888000).

43234728 is an abundant number, since it is smaller than the sum of its proper divisors (72541272).

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

43234728 is a wasteful number, since it uses less digits than its factorization.

43234728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1690 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 43234728 is about 6575.3120078062. The cubic root of 43234728 is about 350.9761268168.

The spelling of 43234728 in words is "forty-three million, two hundred thirty-four thousand, seven hundred twenty-eight".