2628928 has 14 divisors (see below), whose sum is σ = 5216906. Its totient is φ = 1314432.

The previous prime is 2628919. The next prime is 2628953. The reversal of 2628928 is 8298262.

It can be written as a sum of positive squares in only one way, i.e., 2585664 + 43264 = 1608^2 + 208^2 .

It is a super-2 number, since 2×2628928² = 13822524858368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20475 + ... + 20602.

2^2628928 is an apocalyptic number.

It is an amenable number.

2628928 is a deficient number, since it is larger than the sum of its proper divisors (2587978).

2628928 is an equidigital number, since it uses as much as digits as its factorization.

2628928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41089 (or 41079 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 2628928 is about 1621.3969285773. The cubic root of 2628928 is about 138.0149812203.

The spelling of 2628928 in words is "two million, six hundred twenty-eight thousand, nine hundred twenty-eight".