2688345 has 24 divisors (see below), whose sum is σ = 5084352. Its totient is φ = 1303200.

The previous prime is 2688337. The next prime is 2688349. The reversal of 2688345 is 5438862.

It is not a de Polignac number, because 2688345 - 2³ = 2688337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2688349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2221 + ... + 3210.

It is an arithmetic number, because the mean of its divisors is an integer number (211848).

2^2688345 is an apocalyptic number.

It is an amenable number.

2688345 is a deficient number, since it is larger than the sum of its proper divisors (2396007).

2688345 is a wasteful number, since it uses less digits than its factorization.

2688345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5453 (or 5450 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 2688345 is about 1639.6173334044. The cubic root of 2688345 is about 139.0470140985.

The spelling of 2688345 in words is "two million, six hundred eighty-eight thousand, three hundred forty-five".