4218519808 has 72 divisors (see below), whose sum is σ = 8962531200. Its totient is φ = 1974804480.

The previous prime is 4218519803. The next prime is 4218519817. The reversal of 4218519808 is 8089158124.

It is a happy number.

It is a super-3 number, since 3×4218519808³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4218519803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863613 + ... + 868483.

It is an arithmetic number, because the mean of its divisors is an integer number (124479600).

Almost surely, 2^4218519808 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 4218519808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4481265600).

4218519808 is an abundant number, since it is smaller than the sum of its proper divisors (4744011392).

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

4218519808 is a wasteful number, since it uses less digits than its factorization.

4218519808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5103 (or 5089 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 46.

The square root of 4218519808 is about 64950.1332408179. The cubic root of 4218519808 is about 1615.7966283298.

The spelling of 4218519808 in words is "four billion, two hundred eighteen million, five hundred nineteen thousand, eight hundred eight".