8340385 has 8 divisors (see below), whose sum is σ = 10221696. Its totient is φ = 6530160.

The previous prime is 8340349. The next prime is 8340401. The reversal of 8340385 is 5830438.

8340385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8340385 - 2⁷ = 8340257 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 17511 + ... + 17980.

It is an arithmetic number, because the mean of its divisors is an integer number (1277712).

Almost surely, 2^8340385 is an apocalyptic number.

It is an amenable number.

8340385 is a deficient number, since it is larger than the sum of its proper divisors (1881311).

8340385 is a wasteful number, since it uses less digits than its factorization.

8340385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35543.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 8340385 is about 2887.9724721680. The cubic root of 8340385 is about 202.7972366111.

The spelling of 8340385 in words is "eight million, three hundred forty thousand, three hundred eighty-five".