6227720928 has 432 divisors, whose sum is σ = 21410691120. Its totient is φ = 1705144320.

The previous prime is 6227720927. The next prime is 6227720981. The reversal of 6227720928 is 8290277226.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6227720927) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26728300 + ... + 26728532.

It is an arithmetic number, because the mean of its divisors is an integer number (49561785).

Almost surely, 2^6227720928 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 6227720928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10705345560).

6227720928 is an abundant number, since it is smaller than the sum of its proper divisors (15182970192).

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

6227720928 is a wasteful number, since it uses less digits than its factorization.

6227720928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 6227720928 is about 78915.9104870494. The cubic root of 6227720928 is about 1839.8244287423.

The spelling of 6227720928 in words is "six billion, two hundred twenty-seven million, seven hundred twenty thousand, nine hundred twenty-eight".