4543401220 has 96 divisors (see below), whose sum is σ = 10200960000. Its totient is φ = 1694919168.

The previous prime is 4543401211. The next prime is 4543401221. The reversal of 4543401220 is 221043454.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4543401221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9484941 + ... + 9485419.

It is an arithmetic number, because the mean of its divisors is an integer number (106260000).

Almost surely, 2^4543401220 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 4543401220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5100480000).

4543401220 is an abundant number, since it is smaller than the sum of its proper divisors (5657558780).

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

4543401220 is a wasteful number, since it uses less digits than its factorization.

4543401220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4543401220 is about 67404.7566570787. The cubic root of 4543401220 is about 1656.2543430858.

Adding to 4543401220 its reverse (221043454), we get a palindrome (4764444674).

The spelling of 4543401220 in words is "four billion, five hundred forty-three million, four hundred one thousand, two hundred twenty".