2220939648 has 80 divisors (see below), whose sum is σ = 6609511260. Its totient is φ = 740309760.

The previous prime is 2220939641. The next prime is 2220939671. The reversal of 2220939648 is 8469390222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220939641) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 96738 + ... + 117473.

Almost surely, 2^2220939648 is an apocalyptic number.

It is an amenable number.

2220939648 is an abundant number, since it is smaller than the sum of its proper divisors (4388571612).

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

2220939648 is an equidigital number, since it uses as much as digits as its factorization.

2220939648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214237 (or 214216 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 2220939648 is about 47126.8463617077. The cubic root of 2220939648 is about 1304.7047766585.

The spelling of 2220939648 in words is "two billion, two hundred twenty million, nine hundred thirty-nine thousand, six hundred forty-eight".