43755940 has 48 divisors (see below), whose sum is σ = 95312448. Its totient is φ = 16861824.

The previous prime is 43755937. The next prime is 43755947. The reversal of 43755940 is 4955734.

43755940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 43755940.

It is not an unprimeable number, because it can be changed into a prime (43755947) 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, 71074 + ... + 71686.

It is an arithmetic number, because the mean of its divisors is an integer number (1985676).

Almost surely, 2^43755940 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 43755940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47656224).

43755940 is an abundant number, since it is smaller than the sum of its proper divisors (51556508).

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

43755940 is a wasteful number, since it uses less digits than its factorization.

43755940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 43755940 is about 6614.8272842154. The cubic root of 43755940 is about 352.3808829119.

The spelling of 43755940 in words is "forty-three million, seven hundred fifty-five thousand, nine hundred forty".