2221736384 has 56 divisors (see below), whose sum is σ = 5155801728. Its totient is φ = 930021120.

The previous prime is 2221736353. The next prime is 2221736399. The reversal of 2221736384 is 4836371222.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×2221736384² = 9872225119978790912, which contains 22 as substring.

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, 38402 + ... + 76929.

It is an arithmetic number, because the mean of its divisors is an integer number (92067888).

Almost surely, 2^2221736384 is an apocalyptic number.

It is an amenable number.

2221736384 is an abundant number, since it is smaller than the sum of its proper divisors (2934065344).

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

2221736384 is a wasteful number, since it uses less digits than its factorization.

2221736384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115393 (or 115383 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 2221736384 is about 47135.2987048984. The cubic root of 2221736384 is about 1304.8607738416.

The spelling of 2221736384 in words is "two billion, two hundred twenty-one million, seven hundred thirty-six thousand, three hundred eighty-four".