6522340 has 48 divisors (see below), whose sum is σ = 15603840. Its totient is φ = 2266880.

The previous prime is 6522337. The next prime is 6522343. The reversal of 6522340 is 432256.

6522340 = 317² + 318² + ... + 371².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6522337) and next prime (6522343).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6522343) 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 15 ways as a sum of consecutive naturals, for example, 4416 + ... + 5704.

It is an arithmetic number, because the mean of its divisors is an integer number (325080).

Almost surely, 2^6522340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6522340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7801920).

6522340 is an abundant number, since it is smaller than the sum of its proper divisors (9081500).

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

6522340 is a wasteful number, since it uses less digits than its factorization.

6522340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 6522340 is about 2553.8872332192. The cubic root of 6522340 is about 186.8391192582.

Adding to 6522340 its reverse (432256), we get a palindrome (6954596).

It can be divided in two parts, 652 and 2340, that added together give a palindrome (2992).

The spelling of 6522340 in words is "six million, five hundred twenty-two thousand, three hundred forty".