43128285 has 32 divisors (see below), whose sum is σ = 71857152. Its totient is φ = 22064640.

The previous prime is 43128277. The next prime is 43128299. The reversal of 43128285 is 58282134.

43128285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43128285 - 2³ = 43128277 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 63367 + ... + 64043.

It is an arithmetic number, because the mean of its divisors is an integer number (2245536).

Almost surely, 2^43128285 is an apocalyptic number.

It is an amenable number.

43128285 is a deficient number, since it is larger than the sum of its proper divisors (28728867).

43128285 is a wasteful number, since it uses less digits than its factorization.

43128285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853.

The product of its digits is 15360, while the sum is 33.

The square root of 43128285 is about 6567.2128791444. The cubic root of 43128285 is about 350.6878581450.

The spelling of 43128285 in words is "forty-three million, one hundred twenty-eight thousand, two hundred eighty-five".