4421818080 has 384 divisors, whose sum is σ = 16303472640. Its totient is φ = 1117163520.

The previous prime is 4421818043. The next prime is 4421818127. The reversal of 4421818080 is 808181244.

It is a happy number.

4421818080 is a `hidden beast` number, since 4 + 421 + 81 + 80 + 80 = 666.

It is a super-2 number, since 2×4421818080² = 39104950265229772800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18977644 + ... + 18977876.

It is an arithmetic number, because the mean of its divisors is an integer number (42456960).

Almost surely, 2^4421818080 is an apocalyptic number.

4421818080 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 4421818080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8151736320).

4421818080 is an abundant number, since it is smaller than the sum of its proper divisors (11881654560).

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

4421818080 is a wasteful number, since it uses less digits than its factorization.

4421818080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 4421818080 is about 66496.7524019031. The cubic root of 4421818080 is about 1641.3465641040.

The spelling of 4421818080 in words is "four billion, four hundred twenty-one million, eight hundred eighteen thousand, eighty".