6534340 has 24 divisors (see below), whose sum is σ = 13816152. Its totient is φ = 2595840.

The previous prime is 6534337. The next prime is 6534349. The reversal of 6534340 is 434356.

It can be written as a sum of positive squares in 4 ways, for example, as 153664 + 6380676 = 392^2 + 2526^2 .

It is not an unprimeable number, because it can be changed into a prime (6534349) 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, 2100 + ... + 4180.

It is an arithmetic number, because the mean of its divisors is an integer number (575673).

Almost surely, 2^6534340 is an apocalyptic number.

It is an amenable number.

6534340 is an abundant number, since it is smaller than the sum of its proper divisors (7281812).

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

6534340 is a wasteful number, since it uses less digits than its factorization.

6534340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 6534340 is about 2556.2355134064. The cubic root of 6534340 is about 186.9536331609.

Adding to 6534340 its reverse (434356), we get a palindrome (6968696).

The spelling of 6534340 in words is "six million, five hundred thirty-four thousand, three hundred forty".