43385128 has 16 divisors (see below), whose sum is σ = 81472500. Its totient is φ = 21659136.

The previous prime is 43385123. The next prime is 43385129. The reversal of 43385128 is 82158334.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33663204 + 9721924 = 5802^2 + 3118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43385093 and 43385102.

It is not an unprimeable number, because it can be changed into a prime (43385123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848 + ... + 9496.

Almost surely, 2^43385128 is an apocalyptic number.

It is an amenable number.

43385128 is a deficient number, since it is larger than the sum of its proper divisors (38087372).

43385128 is a wasteful number, since it uses less digits than its factorization.

43385128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8364 (or 8360 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 43385128 is about 6586.7387985254. The cubic root of 43385128 is about 351.3826342733.

The spelling of 43385128 in words is "forty-three million, three hundred eighty-five thousand, one hundred twenty-eight".