2216344380 has 96 divisors (see below), whose sum is σ = 6562418688. Its totient is φ = 557990400.

The previous prime is 2216344379. The next prime is 2216344387. The reversal of 2216344380 is 834436122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216344387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61729 + ... + 90791.

It is an arithmetic number, because the mean of its divisors is an integer number (68358528).

Almost surely, 2^2216344380 is an apocalyptic number.

2216344380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216344380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3281209344).

2216344380 is an abundant number, since it is smaller than the sum of its proper divisors (4346074308).

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

2216344380 is a wasteful number, since it uses less digits than its factorization.

2216344380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29147 (or 29145 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 2216344380 is about 47078.0668677039. The cubic root of 2216344380 is about 1303.8043157690.

The spelling of 2216344380 in words is "two billion, two hundred sixteen million, three hundred forty-four thousand, three hundred eighty".