2220604416 has 88 divisors (see below), whose sum is σ = 6576437840. Its totient is φ = 740192256.

The previous prime is 2220604381. The next prime is 2220604429. The reversal of 2220604416 is 6144060222.

2220604416 is a `hidden beast` number, since 22 + 20 + 604 + 4 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2220604416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12511 + ... + 67806.

Almost surely, 2^2220604416 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 2220604416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3288218920).

2220604416 is an abundant number, since it is smaller than the sum of its proper divisors (4355833424).

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

2220604416 is an equidigital number, since it uses as much as digits as its factorization.

2220604416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80346 (or 80322 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2220604416 is about 47123.2895286397. The cubic root of 2220604416 is about 1304.6391286493.

Adding to 2220604416 its reverse (6144060222), we get a palindrome (8364664638).

The spelling of 2220604416 in words is "two billion, two hundred twenty million, six hundred four thousand, four hundred sixteen".