8243340 has 96 divisors (see below), whose sum is σ = 27793920. Its totient is φ = 1783296.

The previous prime is 8243329. The next prime is 8243353. The reversal of 8243340 is 433428.

8243340 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8243340.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7464 + ... + 8496.

It is an arithmetic number, because the mean of its divisors is an integer number (289520).

Almost surely, 2^8243340 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 8243340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13896960).

8243340 is an abundant number, since it is smaller than the sum of its proper divisors (19550580).

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

8243340 is a wasteful number, since it uses less digits than its factorization.

8243340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 8243340 is about 2871.1217320065. The cubic root of 8243340 is about 202.0076133457.

Adding to 8243340 its reverse (433428), we get a palindrome (8676768).

The spelling of 8243340 in words is "eight million, two hundred forty-three thousand, three hundred forty".