4401721200 has 120 divisors (see below), whose sum is σ = 14125746688. Its totient is φ = 1171664640.

The previous prime is 4401721147. The next prime is 4401721211. The reversal of 4401721200 is 21271044.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 725379 + ... + 731421.

Almost surely, 2^4401721200 is an apocalyptic number.

4401721200 is a gapful number since it is divisible by the number (40) 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 4401721200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7062873344).

4401721200 is an abundant number, since it is smaller than the sum of its proper divisors (9724025488).

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

4401721200 is a wasteful number, since it uses less digits than its factorization.

4401721200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671 (or 6660 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 4401721200 is about 66345.4685717118. The cubic root of 4401721200 is about 1638.8561824024.

Adding to 4401721200 its reverse (21271044), we get a palindrome (4422992244).

The spelling of 4401721200 in words is "four billion, four hundred one million, seven hundred twenty-one thousand, two hundred".