3138844 has 12 divisors (see below), whose sum is σ = 5682600. Its totient is φ = 1515248.

The previous prime is 3138809. The next prime is 3138847. The reversal of 3138844 is 4488313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138847) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13414 + ... + 13645.

It is an arithmetic number, because the mean of its divisors is an integer number (473550).

Almost surely, 2^3138844 is an apocalyptic number.

It is an amenable number.

3138844 is a deficient number, since it is larger than the sum of its proper divisors (2543756).

3138844 is a wasteful number, since it uses less digits than its factorization.

3138844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27092 (or 27090 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 3138844 is about 1771.6783003695. The cubic root of 3138844 is about 146.4164627590.

The spelling of 3138844 in words is "three million, one hundred thirty-eight thousand, eight hundred forty-four".