4442784220 has 96 divisors (see below), whose sum is σ = 11048841216. Its totient is φ = 1468454400.

The previous prime is 4442784211. The next prime is 4442784221. The reversal of 4442784220 is 224872444.

It is a self number, because there is not a number n which added to its sum of digits gives 4442784220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442784221) 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, 1217719 + ... + 1221361.

It is an arithmetic number, because the mean of its divisors is an integer number (115092096).

Almost surely, 2^4442784220 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 4442784220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5524420608).

4442784220 is an abundant number, since it is smaller than the sum of its proper divisors (6606056996).

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

4442784220 is a wasteful number, since it uses less digits than its factorization.

4442784220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971 (or 3969 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 37.

The square root of 4442784220 is about 66654.2138202830. The cubic root of 4442784220 is about 1643.9366341116.

The spelling of 4442784220 in words is "four billion, four hundred forty-two million, seven hundred eighty-four thousand, two hundred twenty".