2688235 has 16 divisors (see below), whose sum is σ = 3616992. Its totient is φ = 1900800.

The previous prime is 2688233. The next prime is 2688239. The reversal of 2688235 is 5328862.

It is not a de Polignac number, because 2688235 - 2¹ = 2688233 is a prime.

It is a Duffinian number.

2688235 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2688235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375 + ... + 2695.

It is an arithmetic number, because the mean of its divisors is an integer number (226062).

2^2688235 is an apocalyptic number.

2688235 is a deficient number, since it is larger than the sum of its proper divisors (928757).

2688235 is a wasteful number, since it uses less digits than its factorization.

2688235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its digits is 23040, while the sum is 34.

The square root of 2688235 is about 1639.5837886488. The cubic root of 2688235 is about 139.0451175934.

The spelling of 2688235 in words is "two million, six hundred eighty-eight thousand, two hundred thirty-five".