4218784220 has 48 divisors (see below), whose sum is σ = 10129405440. Its totient is φ = 1445822784.

The previous prime is 4218784211. The next prime is 4218784261. The reversal of 4218784220 is 224878124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426167 + ... + 435953.

It is an arithmetic number, because the mean of its divisors is an integer number (211029280).

Almost surely, 2^4218784220 is an apocalyptic number.

It is an amenable number.

4218784220 is an abundant number, since it is smaller than the sum of its proper divisors (5910621220).

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

4218784220 is a wasteful number, since it uses less digits than its factorization.

4218784220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12882 (or 12880 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 4218784220 is about 64952.1687089815. The cubic root of 4218784220 is about 1615.8303863865.

The spelling of 4218784220 in words is "four billion, two hundred eighteen million, seven hundred eighty-four thousand, two hundred twenty".