2508728 has 16 divisors (see below), whose sum is σ = 4720680. Its totient is φ = 1249888.

The previous prime is 2508697. The next prime is 2508743. The reversal of 2508728 is 8278052.

2508728 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2508728³ = 47367665999284333056, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2⁷ + 5⁸ + 0 + 8⁴ + 7³ + 2¹⁴ + 8⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 2508694 and 2508703.

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 3 ways as a sum of consecutive naturals, for example, 4175 + ... + 4737.

2^2508728 is an apocalyptic number.

It is an amenable number.

2508728 is a deficient number, since it is larger than the sum of its proper divisors (2211952).

2508728 is a wasteful number, since it uses less digits than its factorization.

2508728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 2508728 is about 1583.8964612625. The cubic root of 2508728 is about 135.8786402950.

The spelling of 2508728 in words is "two million, five hundred eight thousand, seven hundred twenty-eight".