2745872 has 10 divisors (see below), whose sum is σ = 5320158. Its totient is φ = 1372928.

The previous prime is 2745863. The next prime is 2745907. The reversal of 2745872 is 2785472.

2745872 is digitally balanced in base 5, 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 only one way, i.e., 2572816 + 173056 = 1604^2 + 416^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85793 + ... + 85824.

2^2745872 is an apocalyptic number.

It is an amenable number.

2745872 is a deficient number, since it is larger than the sum of its proper divisors (2574286).

2745872 is a wasteful number, since it uses less digits than its factorization.

2745872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171625 (or 171619 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 2745872 is about 1657.0672889174. The cubic root of 2745872 is about 140.0318294976.

The spelling of 2745872 in words is "two million, seven hundred forty-five thousand, eight hundred seventy-two".