2568728 has 8 divisors (see below), whose sum is σ = 4816380. Its totient is φ = 1284360.

The previous prime is 2568719. The next prime is 2568739. The reversal of 2568728 is 8278652.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2¹⁴ + 5² + 6⁸ + 8 + 7⁷ + 2¹⁴ + 8⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2568691 and 2568700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160538 + ... + 160553.

2^2568728 is an apocalyptic number.

It is an amenable number.

2568728 is a deficient number, since it is larger than the sum of its proper divisors (2247652).

2568728 is a wasteful number, since it uses less digits than its factorization.

2568728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321097 (or 321093 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 2568728 is about 1602.7251791870. The cubic root of 2568728 is about 136.9533647013.

The spelling of 2568728 in words is "two million, five hundred sixty-eight thousand, seven hundred twenty-eight".