6441340 has 12 divisors (see below), whose sum is σ = 13526856. Its totient is φ = 2576528.

The previous prime is 6441319. The next prime is 6441343. The reversal of 6441340 is 431446.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441343) 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 3 ways as a sum of consecutive naturals, for example, 161014 + ... + 161053.

It is an arithmetic number, because the mean of its divisors is an integer number (1127238).

Almost surely, 2^6441340 is an apocalyptic number.

It is an amenable number.

6441340 is an abundant number, since it is smaller than the sum of its proper divisors (7085516).

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

6441340 is a wasteful number, since it uses less digits than its factorization.

6441340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322076 (or 322074 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 6441340 is about 2537.9795113436. The cubic root of 6441340 is about 186.0624525319.

Adding to 6441340 its reverse (431446), we get a palindrome (6872786).

The spelling of 6441340 in words is "six million, four hundred forty-one thousand, three hundred forty".