2830728 has 32 divisors (see below), whose sum is σ = 7171200. Its totient is φ = 931008.

The previous prime is 2830657. The next prime is 2830741. The reversal of 2830728 is 8270382.

It is a junction number, because it is equal to n+sod(n) for n = 2830695 and 2830704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150 + ... + 2642.

It is an arithmetic number, because the mean of its divisors is an integer number (224100).

2^2830728 is an apocalyptic number.

It is an amenable number.

2830728 is an abundant number, since it is smaller than the sum of its proper divisors (4340472).

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

2830728 is a wasteful number, since it uses less digits than its factorization.

2830728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581 (or 1577 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2830728 is about 1682.4767457531. The cubic root of 2830728 is about 141.4596937645.

The spelling of 2830728 in words is "two million, eight hundred thirty thousand, seven hundred twenty-eight".