2881227216 has 80 divisors (see below), whose sum is σ = 8542310400. Its totient is φ = 819740544.

The previous prime is 2881227211. The next prime is 2881227247. The reversal of 2881227216 is 6127221882.

It is a super-2 number, since 2×2881227216² = 16602940540438221312, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881227211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62365 + ... + 98243.

It is an arithmetic number, because the mean of its divisors is an integer number (106778880).

Almost surely, 2^2881227216 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 2881227216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4271155200).

2881227216 is an abundant number, since it is smaller than the sum of its proper divisors (5661083184).

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

2881227216 is a wasteful number, since it uses less digits than its factorization.

2881227216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36136 (or 36130 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 2881227216 is about 53677.0641522056. The cubic root of 2881227216 is about 1422.9593799678.

The spelling of 2881227216 in words is "two billion, eight hundred eighty-one million, two hundred twenty-seven thousand, two hundred sixteen".