2722065644 has 12 divisors (see below), whose sum is σ = 4783548000. Its totient is φ = 1355337648.

The previous prime is 2722065629. The next prime is 2722065649. The reversal of 2722065644 is 4465602272.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2722065598 and 2722065607.

It is not an unprimeable number, because it can be changed into a prime (2722065649) 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, 1422719 + ... + 1424630.

It is an arithmetic number, because the mean of its divisors is an integer number (398629000).

Almost surely, 2^2722065644 is an apocalyptic number.

It is an amenable number.

2722065644 is a deficient number, since it is larger than the sum of its proper divisors (2061482356).

2722065644 is a wasteful number, since it uses less digits than its factorization.

2722065644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847592 (or 2847590 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 2722065644 is about 52173.4189410661. The cubic root of 2722065644 is about 1396.2596834117.

The spelling of 2722065644 in words is "two billion, seven hundred twenty-two million, sixty-five thousand, six hundred forty-four".