2725728 has 24 divisors (see below), whose sum is σ = 7155288. Its totient is φ = 908544.

The previous prime is 2725711. The next prime is 2725769. The reversal of 2725728 is 8275272.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14101 + ... + 14292.

It is an arithmetic number, because the mean of its divisors is an integer number (298137).

2^2725728 is an apocalyptic number.

It is an amenable number.

2725728 is an abundant number, since it is smaller than the sum of its proper divisors (4429560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2725728 is a wasteful number, since it uses less digits than its factorization.

2725728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28406 (or 28398 counting only the distinct ones).

The product of its digits is 15680, while the sum is 33.

The square root of 2725728 is about 1650.9778920385. The cubic root of 2725728 is about 139.6885593912.

The spelling of 2725728 in words is "two million, seven hundred twenty-five thousand, seven hundred twenty-eight".