2628728 has 8 divisors (see below), whose sum is σ = 4928880. Its totient is φ = 1314360.

The previous prime is 2628713. The next prime is 2628737. The reversal of 2628728 is 8278262.

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

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, 164288 + ... + 164303.

It is an arithmetic number, because the mean of its divisors is an integer number (616110).

2^2628728 is an apocalyptic number.

It is an amenable number.

2628728 is a deficient number, since it is larger than the sum of its proper divisors (2300152).

2628728 is a wasteful number, since it uses less digits than its factorization.

2628728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328597 (or 328593 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 2628728 is about 1621.3352521918. The cubic root of 2628728 is about 138.0114812264.

The spelling of 2628728 in words is "two million, six hundred twenty-eight thousand, seven hundred twenty-eight".