2216379264 has 96 divisors (see below), whose sum is σ = 6471253320. Its totient is φ = 671616000.

The previous prime is 2216379257. The next prime is 2216379311. The reversal of 2216379264 is 4629736122.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22614 + ... + 70314.

Almost surely, 2^2216379264 is an apocalyptic number.

2216379264 is a gapful number since it is divisible by the number (24) 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 2216379264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3235626660).

2216379264 is an abundant number, since it is smaller than the sum of its proper divisors (4254874056).

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

2216379264 is a wasteful number, since it uses less digits than its factorization.

2216379264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47740 (or 47717 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 2216379264 is about 47078.4373572446. The cubic root of 2216379264 is about 1303.8111561126.

The spelling of 2216379264 in words is "two billion, two hundred sixteen million, three hundred seventy-nine thousand, two hundred sixty-four".