5138844 has 48 divisors (see below), whose sum is σ = 12832512. Its totient is φ = 1596672.

The previous prime is 5138831. The next prime is 5138849. The reversal of 5138844 is 4488315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11652 + ... + 12084.

It is an arithmetic number, because the mean of its divisors is an integer number (267344).

Almost surely, 2^5138844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5138844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6416256).

5138844 is an abundant number, since it is smaller than the sum of its proper divisors (7693668).

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

5138844 is a wasteful number, since it uses less digits than its factorization.

5138844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 504 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 5138844 is about 2266.9018505440. The cubic root of 5138844 is about 172.5659651095.

The spelling of 5138844 in words is "five million, one hundred thirty-eight thousand, eight hundred forty-four".