2749838 has 32 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 1048320.

The previous prime is 2749823. The next prime is 2749847. The reversal of 2749838 is 8389472.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2749795 and 2749804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5018 + ... + 5538.

It is an arithmetic number, because the mean of its divisors is an integer number (164430).

2^2749838 is an apocalyptic number.

2749838 is a deficient number, since it is larger than the sum of its proper divisors (2511922).

2749838 is a wasteful number, since it uses less digits than its factorization.

2749838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572.

The product of its digits is 96768, while the sum is 41.

The square root of 2749838 is about 1658.2635496205. The cubic root of 2749838 is about 140.0992153856.

The spelling of 2749838 in words is "two million, seven hundred forty-nine thousand, eight hundred thirty-eight".