4243355220 has 96 divisors (see below), whose sum is σ = 12986483328. Its totient is φ = 1028915712.

The previous prime is 4243355201. The next prime is 4243355231. The reversal of 4243355220 is 225533424.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11662 + ... + 92858.

It is an arithmetic number, because the mean of its divisors is an integer number (135275868).

Almost surely, 2^4243355220 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 4243355220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6493241664).

4243355220 is an abundant number, since it is smaller than the sum of its proper divisors (8743128108).

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

4243355220 is a wasteful number, since it uses less digits than its factorization.

4243355220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81289 (or 81287 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 4243355220 is about 65141.0409803221. The cubic root of 4243355220 is about 1618.9612835330.

Adding to 4243355220 its reverse (225533424), we get a palindrome (4468888644).

The spelling of 4243355220 in words is "four billion, two hundred forty-three million, three hundred fifty-five thousand, two hundred twenty".