5548644 has 36 divisors (see below), whose sum is σ = 14210560. Its totient is φ = 1825200.

The previous prime is 5548619. The next prime is 5548649. The reversal of 5548644 is 4468455.

5548644 is a `hidden beast` number, since 5 + 5 + 4 + 8 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5548599 and 5548608.

It is not an unprimeable number, because it can be changed into a prime (5548649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1869 + ... + 3819.

Almost surely, 2^5548644 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 5548644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7105280).

5548644 is an abundant number, since it is smaller than the sum of its proper divisors (8661916).

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

5548644 is a wasteful number, since it uses less digits than its factorization.

5548644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040 (or 2035 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 5548644 is about 2355.5559853249. Note that the first 3 decimals coincide. The cubic root of 5548644 is about 177.0362848143.

The spelling of 5548644 in words is "five million, five hundred forty-eight thousand, six hundred forty-four".