2309722648 has 16 divisors (see below), whose sum is σ = 4332518280. Its totient is φ = 1154384448.

The previous prime is 2309722643. The next prime is 2309722687. The reversal of 2309722648 is 8462279032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309722643) 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, 38590 + ... + 78157.

Almost surely, 2^2309722648 is an apocalyptic number.

It is an amenable number.

2309722648 is a deficient number, since it is larger than the sum of its proper divisors (2022795632).

2309722648 is a wasteful number, since it uses less digits than its factorization.

2309722648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119226 (or 119222 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 2309722648 is about 48059.5739473416. The cubic root of 2309722648 is about 1321.8635005160.

The spelling of 2309722648 in words is "two billion, three hundred nine million, seven hundred twenty-two thousand, six hundred forty-eight".