2688434 has 16 divisors (see below), whose sum is σ = 4704000. Its totient is φ = 1151892.

The previous prime is 2688421. The next prime is 2688451. The reversal of 2688434 is 4348862.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2688394 and 2688403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274 + ... + 2645.

It is an arithmetic number, because the mean of its divisors is an integer number (294000).

2^2688434 is an apocalyptic number.

2688434 is a deficient number, since it is larger than the sum of its proper divisors (2015566).

2688434 is an equidigital number, since it uses as much as digits as its factorization.

2688434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942 (or 3928 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 2688434 is about 1639.6444736588. The cubic root of 2688434 is about 139.0485485057.

The spelling of 2688434 in words is "two million, six hundred eighty-eight thousand, four hundred thirty-four".