6530340 has 48 divisors (see below), whose sum is σ = 18450432. Its totient is φ = 1725696.

The previous prime is 6530339. The next prime is 6530341. The reversal of 6530340 is 430356.

It is an interprime number because it is at equal distance from previous prime (6530339) and next prime (6530341).

It is not an unprimeable number, because it can be changed into a prime (6530341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7192 + ... + 8048.

It is an arithmetic number, because the mean of its divisors is an integer number (384384).

Almost surely, 2^6530340 is an apocalyptic number.

6530340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6530340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9225216).

6530340 is an abundant number, since it is smaller than the sum of its proper divisors (11920092).

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

6530340 is a wasteful number, since it uses less digits than its factorization.

6530340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 6530340 is about 2555.4529931110. The cubic root of 6530340 is about 186.9154774494.

Adding to 6530340 its reverse (430356), we get a palindrome (6960696).

The spelling of 6530340 in words is "six million, five hundred thirty thousand, three hundred forty".