2540795728 has 10 divisors (see below), whose sum is σ = 4922791754. Its totient is φ = 1270397856.

The previous prime is 2540795711. The next prime is 2540795731. The reversal of 2540795728 is 8275970452.

It can be written as a sum of positive squares in only one way, i.e., 1592648464 + 948147264 = 39908^2 + 30792^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79399851 + ... + 79399882.

Almost surely, 2^2540795728 is an apocalyptic number.

It is an amenable number.

2540795728 is a deficient number, since it is larger than the sum of its proper divisors (2381996026).

2540795728 is a wasteful number, since it uses less digits than its factorization.

2540795728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158799741 (or 158799735 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 2540795728 is about 50406.3064308426. The cubic root of 2540795728 is about 1364.5514549963.

The spelling of 2540795728 in words is "two billion, five hundred forty million, seven hundred ninety-five thousand, seven hundred twenty-eight".