43138752 has 56 divisors (see below), whose sum is σ = 115555776. Its totient is φ = 14201088.

The previous prime is 43138727. The next prime is 43138757. The reversal of 43138752 is 25783134.

It is not an unprimeable number, because it can be changed into a prime (43138757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14583 + ... + 17289.

It is an arithmetic number, because the mean of its divisors is an integer number (2063496).

Almost surely, 2^43138752 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 43138752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57777888).

43138752 is an abundant number, since it is smaller than the sum of its proper divisors (72417024).

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

43138752 is a wasteful number, since it uses less digits than its factorization.

43138752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805 (or 2795 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 43138752 is about 6568.0097442071. The cubic root of 43138752 is about 350.7162258616.

The spelling of 43138752 in words is "forty-three million, one hundred thirty-eight thousand, seven hundred fifty-two".