5644020 has 48 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 1489536.

The previous prime is 5643973. The next prime is 5644021. The reversal of 5644020 is 204465.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644021) 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 15 ways as a sum of consecutive naturals, for example, 6109 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

Almost surely, 2^5644020 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 5644020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7983360).

5644020 is an abundant number, since it is smaller than the sum of its proper divisors (10322700).

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

5644020 is a wasteful number, since it uses less digits than its factorization.

5644020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 5644020 is about 2375.7146293274. The cubic root of 5644020 is about 178.0448904160.

Adding to 5644020 its reverse (204465), we get a palindrome (5848485).

The spelling of 5644020 in words is "five million, six hundred forty-four thousand, twenty".