2560221730 has 64 divisors (see below), whose sum is σ = 5143150080. Its totient is φ = 909792000.

The previous prime is 2560221683. The next prime is 2560221733. The reversal of 2560221730 is 371220652.

It is not an unprimeable number, because it can be changed into a prime (2560221733) 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 31 ways as a sum of consecutive naturals, for example, 876232 + ... + 879148.

It is an arithmetic number, because the mean of its divisors is an integer number (80361720).

Almost surely, 2^2560221730 is an apocalyptic number.

2560221730 is an abundant number, since it is smaller than the sum of its proper divisors (2582928350).

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

2560221730 is a wasteful number, since it uses less digits than its factorization.

2560221730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2560221730 is about 50598.6336772052. The cubic root of 2560221730 is about 1368.0202513018.

It can be divided in two parts, 256022 and 1730, that added together give a palindrome (257752).

The spelling of 2560221730 in words is "two billion, five hundred sixty million, two hundred twenty-one thousand, seven hundred thirty".