43850140 has 24 divisors (see below), whose sum is σ = 97502832. Its totient is φ = 16508160.

The previous prime is 43850129. The next prime is 43850141. The reversal of 43850140 is 4105834.

43850140 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 (43850141) 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 7 ways as a sum of consecutive naturals, for example, 64146 + ... + 64825.

It is an arithmetic number, because the mean of its divisors is an integer number (4062618).

Almost surely, 2^43850140 is an apocalyptic number.

It is an amenable number.

43850140 is an abundant number, since it is smaller than the sum of its proper divisors (53652692).

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

43850140 is a wasteful number, since it uses less digits than its factorization.

43850140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128997 (or 128995 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 43850140 is about 6621.9438233800. The cubic root of 43850140 is about 352.6335761222.

Adding to 43850140 its reverse (4105834), we get a palindrome (47955974).

The spelling of 43850140 in words is "forty-three million, eight hundred fifty thousand, one hundred forty".