2219428864 has 44 divisors (see below), whose sum is σ = 4464244984. Its totient is φ = 1102823424.

The previous prime is 2219428847. The next prime is 2219428889. The reversal of 2219428864 is 4688249122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160264 + ... + 173560.

Almost surely, 2^2219428864 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 2219428864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2232122492).

2219428864 is an abundant number, since it is smaller than the sum of its proper divisors (2244816120).

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

2219428864 is a wasteful number, since it uses less digits than its factorization.

2219428864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480 (or 13462 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 2219428864 is about 47110.8147244346. The cubic root of 2219428864 is about 1304.4088697403.

The spelling of 2219428864 in words is "two billion, two hundred nineteen million, four hundred twenty-eight thousand, eight hundred sixty-four".