43278 has 8 divisors (see below), whose sum is σ = 86568. Its totient is φ = 14424.

The previous prime is 43271. The next prime is 43283. The reversal of 43278 is 87234.

It is a sphenic number, since it is the product of 3 distinct primes.

43278 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 6 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3601 + ... + 3612.

It is an arithmetic number, because the mean of its divisors is an integer number (10821).

2⁴³²⁷⁸ is an apocalyptic number.

43278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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 (43284).

43278 is a wasteful number, since it uses less digits than its factorization.

43278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218.

The product of its digits is 1344, while the sum is 24.

The square root of 43278 is about 208.0336511240. The cubic root of 43278 is about 35.1093180673.

Subtracting 43278 from its reverse (87234), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 43278 in words is "forty-three thousand, two hundred seventy-eight".