43231128 has 16 divisors (see below), whose sum is σ = 108077880. Its totient is φ = 14410368.

The previous prime is 43231121. The next prime is 43231171. The reversal of 43231128 is 82113234.

43231128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1801297 = 43231128 / (4 + 3 + 2 + 3 + 1 + 1 + 2 + 8).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 43231098 and 43231107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43231121) 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 3 ways as a sum of consecutive naturals, for example, 900625 + ... + 900672.

Almost surely, 2^43231128 is an apocalyptic number.

It is an amenable number.

43231128 is an abundant number, since it is smaller than the sum of its proper divisors (64846752).

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

43231128 is a wasteful number, since it uses less digits than its factorization.

43231128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801306 (or 1801302 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 43231128 is about 6575.0382508393. The cubic root of 43231128 is about 350.9663850407.

The spelling of 43231128 in words is "forty-three million, two hundred thirty-one thousand, one hundred twenty-eight".