43340 has 24 divisors (see below), whose sum is σ = 99792. Its totient is φ = 15680.

The previous prime is 43331. The next prime is 43391. The reversal of 43340 is 4334.

It is a nialpdrome in base 15.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 122 + ... + 318.

It is an arithmetic number, because the mean of its divisors is an integer number (4158).

2⁴³³⁴⁰ 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 43340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49896).

43340 is an abundant number, since it is smaller than the sum of its proper divisors (56452).

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

43340 is a wasteful number, since it uses less digits than its factorization.

43340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 43340 is about 208.1826121462. The cubic root of 43340 is about 35.1260759202.

Adding to 43340 its reverse (4334), we get a palindrome (47674).

It can be divided in two parts, 43 and 340, that added together give a palindrome (383).

The spelling of 43340 in words is "forty-three thousand, three hundred forty", and thus it is an iban number.