43280 has 20 divisors (see below), whose sum is σ = 100812. Its totient is φ = 17280.

The previous prime is 43271. The next prime is 43283. The reversal of 43280 is 8234.

It can be written as a sum of positive squares in 2 ways, for example, as 16384 + 26896 = 128^2 + 164^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15 and base 16.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (43283) by changing a digit.

43280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191 + ... + 350.

2⁴³²⁸⁰ is an apocalyptic number.

43280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43280 is an abundant number, since it is smaller than the sum of its proper divisors (57532).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50406).

43280 is a wasteful number, since it uses less digits than its factorization.

43280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 43280 is about 208.0384579831. The cubic root of 43280 is about 35.1098588930.

It can be divided in two parts, 432 and 80, that added together give a 9-th power (512 = 2⁹).

The spelling of 43280 in words is "forty-three thousand, two hundred eighty".