4418581860 has 1152 divisors, whose sum is σ = 19856793600. Its totient is φ = 801239040.

The previous prime is 4418581829. The next prime is 4418581883. The reversal of 4418581860 is 681858144.

4418581860 is a `hidden beast` number, since 4 + 4 + 1 + 8 + 581 + 8 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 94012357 + ... + 94012403.

It is an arithmetic number, because the mean of its divisors is an integer number (17236800).

Almost surely, 2^4418581860 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 4418581860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9928396800).

4418581860 is an abundant number, since it is smaller than the sum of its proper divisors (15438211740).

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

4418581860 is a wasteful number, since it uses less digits than its factorization.

4418581860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 4418581860 is about 66472.4142784057. The cubic root of 4418581860 is about 1640.9460459720.

The spelling of 4418581860 in words is "four billion, four hundred eighteen million, five hundred eighty-one thousand, eight hundred sixty".