2756838 has 24 divisors (see below), whose sum is σ = 6414552. Its totient is φ = 787584.

The previous prime is 2756821. The next prime is 2756869. The reversal of 2756838 is 8386572.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2756796 and 2756805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4395 + ... + 4982.

It is an arithmetic number, because the mean of its divisors is an integer number (267273).

2^2756838 is an apocalyptic number.

2756838 is an abundant number, since it is smaller than the sum of its proper divisors (3657714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2756838 is a wasteful number, since it uses less digits than its factorization.

2756838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9396 (or 9389 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 2756838 is about 1660.3728496937. The cubic root of 2756838 is about 140.2179937196.

It can be divided in two parts, 27 and 56838, that added together give a palindrome (56865).

The spelling of 2756838 in words is "two million, seven hundred fifty-six thousand, eight hundred thirty-eight".