8323140 has 144 divisors (see below), whose sum is σ = 28728000. Its totient is φ = 1790208.

The previous prime is 8323109. The next prime is 8323151. The reversal of 8323140 is 413238.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55786 + ... + 55934.

It is an arithmetic number, because the mean of its divisors is an integer number (199500).

Almost surely, 2^8323140 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 8323140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14364000).

8323140 is an abundant number, since it is smaller than the sum of its proper divisors (20404860).

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

8323140 is a wasteful number, since it uses less digits than its factorization.

8323140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 8323140 is about 2884.9852685932. The cubic root of 8323140 is about 202.6573689082.

Adding to 8323140 its reverse (413238), we get a palindrome (8736378).

The spelling of 8323140 in words is "eight million, three hundred twenty-three thousand, one hundred forty".