5538944 has 32 divisors (see below), whose sum is σ = 11163900. Its totient is φ = 2737152.

The previous prime is 5538943. The next prime is 5538947. The reversal of 5538944 is 4498355.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5345344 + 193600 = 2312^2 + 440^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5538898 and 5538907.

It is not an unprimeable number, because it can be changed into a prime (5538943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13754 + ... + 14150.

Almost surely, 2^5538944 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 5538944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5581950).

5538944 is an abundant number, since it is smaller than the sum of its proper divisors (5624956).

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

5538944 is a wasteful number, since it uses less digits than its factorization.

5538944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 508 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 5538944 is about 2353.4961227926. The cubic root of 5538944 is about 176.9330611786.

The spelling of 5538944 in words is "five million, five hundred thirty-eight thousand, nine hundred forty-four".