8340744 has 32 divisors (see below), whose sum is σ = 22079520. Its totient is φ = 2616576.

The previous prime is 8340733. The next prime is 8340749. The reversal of 8340744 is 4470438.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8340749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9814 + ... + 10629.

It is an arithmetic number, because the mean of its divisors is an integer number (689985).

Almost surely, 2^8340744 is an apocalyptic number.

It is an amenable number.

8340744 is an abundant number, since it is smaller than the sum of its proper divisors (13738776).

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

8340744 is a wasteful number, since it uses less digits than its factorization.

8340744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469 (or 20465 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 8340744 is about 2888.0346258312. The cubic root of 8340744 is about 202.8001462755.

The spelling of 8340744 in words is "eight million, three hundred forty thousand, seven hundred forty-four".