6220340 has 48 divisors (see below), whose sum is σ = 15076992. Its totient is φ = 2111616.

The previous prime is 6220339. The next prime is 6220343. The reversal of 6220340 is 430226.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220343) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21839 + ... + 22121.

It is an arithmetic number, because the mean of its divisors is an integer number (314104).

Almost surely, 2^6220340 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 6220340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7538496).

6220340 is an abundant number, since it is smaller than the sum of its proper divisors (8856652).

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

6220340 is a wasteful number, since it uses less digits than its factorization.

6220340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 6220340 is about 2494.0609455264. The cubic root of 6220340 is about 183.9097304536.

Adding to 6220340 its reverse (430226), we get a palindrome (6650566).

It can be divided in two parts, 62 and 20340, that added together give a palindrome (20402).

The spelling of 6220340 in words is "six million, two hundred twenty thousand, three hundred forty".