6220281640 has 64 divisors (see below), whose sum is σ = 15219478800. Its totient is φ = 2278453248.

The previous prime is 6220281619. The next prime is 6220281649. The reversal of 6220281640 is 461820226.

It can be written as a sum of positive squares in 8 ways, for example, as 3385145124 + 2835136516 = 58182^2 + 53246^2 .

It is not an unprimeable number, because it can be changed into a prime (6220281649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98455 + ... + 148774.

Almost surely, 2^6220281640 is an apocalyptic number.

It is an amenable number.

6220281640 is an abundant number, since it is smaller than the sum of its proper divisors (8999197160).

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

6220281640 is a wasteful number, since it uses less digits than its factorization.

6220281640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247294 (or 247290 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 6220281640 is about 78868.7621305165. The cubic root of 6220281640 is about 1839.0915529720.

The spelling of 6220281640 in words is "six billion, two hundred twenty million, two hundred eighty-one thousand, six hundred forty".