43641552 has 80 divisors (see below), whose sum is σ = 117770240. Its totient is φ = 13910400.

The previous prime is 43641551. The next prime is 43641581. The reversal of 43641552 is 25514634.

43641552 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 not an unprimeable number, because it can be changed into a prime (43641551) 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, 206727 + ... + 206937.

It is an arithmetic number, because the mean of its divisors is an integer number (1472128).

Almost surely, 2^43641552 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 43641552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58885120).

43641552 is an abundant number, since it is smaller than the sum of its proper divisors (74128688).

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

43641552 is a wasteful number, since it uses less digits than its factorization.

43641552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 386 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 43641552 is about 6606.1752928605. The cubic root of 43641552 is about 352.0735469598.

The spelling of 43641552 in words is "forty-three million, six hundred forty-one thousand, five hundred fifty-two".