43228432 has 80 divisors (see below), whose sum is σ = 95587632. Its totient is φ = 18800640.

The previous prime is 43228429. The next prime is 43228447. The reversal of 43228432 is 23482234.

It can be written as a sum of positive squares in 8 ways, for example, as 1806336 + 41422096 = 1344^2 + 6436^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43228432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315468 + ... + 315604.

Almost surely, 2^43228432 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 43228432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47793816).

43228432 is an abundant number, since it is smaller than the sum of its proper divisors (52359200).

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

43228432 is a wasteful number, since it uses less digits than its factorization.

43228432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 230 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 43228432 is about 6574.8332298242. The cubic root of 43228432 is about 350.9590891786.

It can be divided in two parts, 43228 and 432, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 43228432 in words is "forty-three million, two hundred twenty-eight thousand, four hundred thirty-two".