3728255745 has 32 divisors (see below), whose sum is σ = 6000284160. Its totient is φ = 1976751360.

The previous prime is 3728255719. The next prime is 3728255749. The reversal of 3728255745 is 5475528273.

It is not a de Polignac number, because 3728255745 - 2¹⁰ = 3728254721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3728255694 and 3728255703.

It is not an unprimeable number, because it can be changed into a prime (3728255749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2140575 + ... + 2142315.

It is an arithmetic number, because the mean of its divisors is an integer number (187508880).

Almost surely, 2^3728255745 is an apocalyptic number.

It is an amenable number.

3728255745 is a deficient number, since it is larger than the sum of its proper divisors (2272028415).

3728255745 is a wasteful number, since it uses less digits than its factorization.

3728255745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505.

The product of its digits is 2352000, while the sum is 48.

The square root of 3728255745 is about 61059.4443554803. Note that the first 3 decimals coincide. The cubic root of 3728255745 is about 1550.6075654935.

The spelling of 3728255745 in words is "three billion, seven hundred twenty-eight million, two hundred fifty-five thousand, seven hundred forty-five".