2728860 has 24 divisors (see below), whose sum is σ = 7640976. Its totient is φ = 727680.

The previous prime is 2728853. The next prime is 2728877. The reversal of 2728860 is 688272.

2728860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22681 + ... + 22800.

It is an arithmetic number, because the mean of its divisors is an integer number (318374).

2^2728860 is an apocalyptic number.

2728860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2728860 is an abundant number, since it is smaller than the sum of its proper divisors (4912116).

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

2728860 is a wasteful number, since it uses less digits than its factorization.

2728860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45493 (or 45491 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 2728860 is about 1651.9261484703. The cubic root of 2728860 is about 139.7420419964.

The spelling of 2728860 in words is "two million, seven hundred twenty-eight thousand, eight hundred sixty".