2216582004 has 96 divisors (see below), whose sum is σ = 6391719936. Its totient is φ = 582192000.

The previous prime is 2216582003. The next prime is 2216582021. The reversal of 2216582004 is 4002856122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216582003) 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, 270049 + ... + 278135.

It is an arithmetic number, because the mean of its divisors is an integer number (66580416).

Almost surely, 2^2216582004 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 2216582004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3195859968).

2216582004 is an abundant number, since it is smaller than the sum of its proper divisors (4175137932).

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

2216582004 is a wasteful number, since it uses less digits than its factorization.

2216582004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365 (or 8363 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2216582004 is about 47080.5905230595. The cubic root of 2216582004 is about 1303.8509096299.

The spelling of 2216582004 in words is "two billion, two hundred sixteen million, five hundred eighty-two thousand, four".