2783079220 has 12 divisors (see below), whose sum is σ = 5844466404. Its totient is φ = 1113231680.

The previous prime is 2783079203. The next prime is 2783079227. The reversal of 2783079220 is 229703872.

2783079220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1975269136 + 807810084 = 44444^2 + 28422^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2783079227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69576961 + ... + 69577000.

It is an arithmetic number, because the mean of its divisors is an integer number (487038867).

Almost surely, 2^2783079220 is an apocalyptic number.

2783079220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2783079220 is an abundant number, since it is smaller than the sum of its proper divisors (3061387184).

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

2783079220 is a wasteful number, since it uses less digits than its factorization.

2783079220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139153970 (or 139153968 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 2783079220 is about 52754.8975925459. The cubic root of 2783079220 is about 1406.6148224293.

The spelling of 2783079220 in words is "two billion, seven hundred eighty-three million, seventy-nine thousand, two hundred twenty".