2220279648 has 24 divisors (see below), whose sum is σ = 5828234328. Its totient is φ = 740093184.

The previous prime is 2220279641. The next prime is 2220279661. The reversal of 2220279648 is 8469720222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220279641) 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 3 ways as a sum of consecutive naturals, for example, 11563861 + ... + 11564052.

It is an arithmetic number, because the mean of its divisors is an integer number (242843097).

Almost surely, 2^2220279648 is an apocalyptic number.

It is an amenable number.

2220279648 is an abundant number, since it is smaller than the sum of its proper divisors (3607954680).

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

2220279648 is a wasteful number, since it uses less digits than its factorization.

2220279648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23127926 (or 23127918 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 2220279648 is about 47119.8434632374. The cubic root of 2220279648 is about 1304.5755234892.

The spelling of 2220279648 in words is "two billion, two hundred twenty million, two hundred seventy-nine thousand, six hundred forty-eight".