5644021200 has 240 divisors, whose sum is σ = 18792178176. Its totient is φ = 1446451200.

The previous prime is 5644021189. The next prime is 5644021217. The reversal of 5644021200 is 21204465.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6435162 + ... + 6436038.

Almost surely, 2^5644021200 is an apocalyptic number.

5644021200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5644021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9396089088).

5644021200 is an abundant number, since it is smaller than the sum of its proper divisors (13148156976).

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

5644021200 is a wasteful number, since it uses less digits than its factorization.

5644021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 5644021200 is about 75126.7009790793. The cubic root of 5644021200 is about 1780.4490303428.

Adding to 5644021200 its reverse (21204465), we get a palindrome (5665225665).

The spelling of 5644021200 in words is "five billion, six hundred forty-four million, twenty-one thousand, two hundred".