8140244 has 24 divisors (see below), whose sum is σ = 16661568. Its totient is φ = 3407040.

The previous prime is 8140211. The next prime is 8140247. The reversal of 8140244 is 4420418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2177 + ... + 4584.

It is an arithmetic number, because the mean of its divisors is an integer number (694232).

Almost surely, 2^8140244 is an apocalyptic number.

It is an amenable number.

8140244 is an abundant number, since it is smaller than the sum of its proper divisors (8521324).

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

8140244 is a wasteful number, since it uses less digits than its factorization.

8140244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815 (or 6813 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 8140244 is about 2853.1112841949. Note that the first 3 decimals coincide. The cubic root of 8140244 is about 201.1619364458.

The spelling of 8140244 in words is "eight million, one hundred forty thousand, two hundred forty-four".