2213509638 has 8 divisors (see below), whose sum is σ = 4427019288. Its totient is φ = 737836544.

The previous prime is 2213509631. The next prime is 2213509643. The reversal of 2213509638 is 8369053122.

It is a sphenic number, since it is the product of 3 distinct primes.

2213509638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2213509596 and 2213509605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213509631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184459131 + ... + 184459142.

It is an arithmetic number, because the mean of its divisors is an integer number (553377411).

Almost surely, 2^2213509638 is an apocalyptic number.

2213509638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2213509638 is a wasteful number, since it uses less digits than its factorization.

2213509638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368918278.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 2213509638 is about 47047.9504123187. The cubic root of 2213509638 is about 1303.2482160138.

The spelling of 2213509638 in words is "two billion, two hundred thirteen million, five hundred nine thousand, six hundred thirty-eight".