2219266064 has 40 divisors (see below), whose sum is σ = 4464189720. Its totient is φ = 1067494400.

The previous prime is 2219266057. The next prime is 2219266079. The reversal of 2219266064 is 4606629122.

It can be written as a sum of positive squares in 4 ways, for example, as 1148667664 + 1070598400 = 33892^2 + 32720^2 .

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, 121874 + ... + 138894.

It is an arithmetic number, because the mean of its divisors is an integer number (111604743).

Almost surely, 2^2219266064 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 2219266064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2232094860).

2219266064 is an abundant number, since it is smaller than the sum of its proper divisors (2244923656).

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

2219266064 is a wasteful number, since it uses less digits than its factorization.

2219266064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17339 (or 17333 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 2219266064 is about 47109.0868516892. The cubic root of 2219266064 is about 1304.3769752051.

The spelling of 2219266064 in words is "two billion, two hundred nineteen million, two hundred sixty-six thousand, sixty-four".