43427328 has 120 divisors (see below), whose sum is σ = 134815032. Its totient is φ = 12386304.

The previous prime is 43427281. The next prime is 43427347. The reversal of 43427328 is 82372434.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74976 + ... + 75552.

Almost surely, 2^43427328 is an apocalyptic number.

43427328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43427328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67407516).

43427328 is an abundant number, since it is smaller than the sum of its proper divisors (91387704).

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

43427328 is an equidigital number, since it uses as much as digits as its factorization.

43427328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 589 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 43427328 is about 6589.9414261433. The cubic root of 43427328 is about 351.4965253898.

The spelling of 43427328 in words is "forty-three million, four hundred twenty-seven thousand, three hundred twenty-eight".