2688628 has 12 divisors (see below), whose sum is σ = 4771872. Its totient is φ = 1325240.

The previous prime is 2688617. The next prime is 2688629. The reversal of 2688628 is 8268862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4450 + ... + 5017.

It is an arithmetic number, because the mean of its divisors is an integer number (397656).

2^2688628 is an apocalyptic number.

It is an amenable number.

2688628 is a deficient number, since it is larger than the sum of its proper divisors (2083244).

2688628 is a wasteful number, since it uses less digits than its factorization.

2688628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9542 (or 9540 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 2688628 is about 1639.7036317579. The cubic root of 2688628 is about 139.0518930512.

The spelling of 2688628 in words is "two million, six hundred eighty-eight thousand, six hundred twenty-eight".