2220145326 has 96 divisors (see below), whose sum is σ = 5928249600. Its totient is φ = 586258560.

The previous prime is 2220145283. The next prime is 2220145349. The reversal of 2220145326 is 6235410222.

It is a happy number.

2220145326 is a `hidden beast` number, since 2 + 2 + 201 + 453 + 2 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2220145326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86845 + ... + 109463.

It is an arithmetic number, because the mean of its divisors is an integer number (61752600).

Almost surely, 2^2220145326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220145326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2964124800).

2220145326 is an abundant number, since it is smaller than the sum of its proper divisors (3708104274).

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

2220145326 is a wasteful number, since it uses less digits than its factorization.

2220145326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22694 (or 22691 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2220145326 is about 47118.4181186084. The cubic root of 2220145326 is about 1304.5492149823.

Adding to 2220145326 its reverse (6235410222), we get a palindrome (8455555548).

The spelling of 2220145326 in words is "two billion, two hundred twenty million, one hundred forty-five thousand, three hundred twenty-six".