4428081216 has 336 divisors, whose sum is σ = 14390827200. Its totient is φ = 1334181888.

The previous prime is 4428081209. The next prime is 4428081277. The reversal of 4428081216 is 6121808244.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17229760 + ... + 17230016.

Almost surely, 2^4428081216 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 4428081216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7195413600).

4428081216 is an abundant number, since it is smaller than the sum of its proper divisors (9962745984).

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

4428081216 is a wasteful number, since it uses less digits than its factorization.

4428081216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 4428081216 is about 66543.8292856671. The cubic root of 4428081216 is about 1642.1211419517.

The spelling of 4428081216 in words is "four billion, four hundred twenty-eight million, eighty-one thousand, two hundred sixteen".