2838644 has 12 divisors (see below), whose sum is σ = 4994724. Its totient is φ = 1411584.

The previous prime is 2838631. The next prime is 2838697. The reversal of 2838644 is 4468382.

It can be written as a sum of positive squares in 2 ways, for example, as 1488400 + 1350244 = 1220^2 + 1162^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067 + ... + 2610.

It is an arithmetic number, because the mean of its divisors is an integer number (416227).

2^2838644 is an apocalyptic number.

It is an amenable number.

2838644 is a deficient number, since it is larger than the sum of its proper divisors (2156080).

2838644 is a wasteful number, since it uses less digits than its factorization.

2838644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874 (or 3872 counting only the distinct ones).

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

The square root of 2838644 is about 1684.8275876184. The cubic root of 2838644 is about 141.5914328714.

The spelling of 2838644 in words is "two million, eight hundred thirty-eight thousand, six hundred forty-four".