6221300640 has 192 divisors, whose sum is σ = 20288257920. Its totient is φ = 1601372160.

The previous prime is 6221300633. The next prime is 6221300651. The reversal of 6221300640 is 460031226.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 6221300640.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1907331 + ... + 1910589.

It is an arithmetic number, because the mean of its divisors is an integer number (105668010).

Almost surely, 2^6221300640 is an apocalyptic number.

6221300640 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 6221300640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10144128960).

6221300640 is an abundant number, since it is smaller than the sum of its proper divisors (14066957280).

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

6221300640 is a wasteful number, since it uses less digits than its factorization.

6221300640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415 (or 3407 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6221300640 is about 78875.2219648224. The cubic root of 6221300640 is about 1839.1919735037.

Adding to 6221300640 its reverse (460031226), we get a palindrome (6681331866).

The spelling of 6221300640 in words is "six billion, two hundred twenty-one million, three hundred thousand, six hundred forty".