8344140 has 48 divisors (see below), whose sum is σ = 26702592. Its totient is φ = 1907136.

The previous prime is 8344139. The next prime is 8344151. The reversal of 8344140 is 414438.

It is a self number, because there is not a number n which added to its sum of digits gives 8344140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9514 + ... + 10353.

It is an arithmetic number, because the mean of its divisors is an integer number (556304).

Almost surely, 2^8344140 is an apocalyptic number.

It is an amenable number.

8344140 is an abundant number, since it is smaller than the sum of its proper divisors (18358452).

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

8344140 is a wasteful number, since it uses less digits than its factorization.

8344140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19886 (or 19884 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 8344140 is about 2888.6225090863. The cubic root of 8344140 is about 202.8276664362.

Adding to 8344140 its reverse (414438), we get a palindrome (8758578).

The spelling of 8344140 in words is "eight million, three hundred forty-four thousand, one hundred forty".