2688236 has 6 divisors (see below), whose sum is σ = 4704420. Its totient is φ = 1344116.

The previous prime is 2688233. The next prime is 2688239. The reversal of 2688236 is 6328862.

It is an interprime number because it is at equal distance from previous prime (2688233) and next prime (2688239).

It is a super-2 number, since 2×2688236² = 14453225583392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2688196 and 2688205.

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 as a sum of consecutive naturals, namely, 336026 + ... + 336033.

It is an arithmetic number, because the mean of its divisors is an integer number (784070).

2^2688236 is an apocalyptic number.

It is an amenable number.

2688236 is a deficient number, since it is larger than the sum of its proper divisors (2016184).

2688236 is a wasteful number, since it uses less digits than its factorization.

2688236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672063 (or 672061 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 2688236 is about 1639.5840936042. The cubic root of 2688236 is about 139.0451348346.

The spelling of 2688236 in words is "two million, six hundred eighty-eight thousand, two hundred thirty-six".