2189957326 has 8 divisors (see below), whose sum is σ = 3285164160. Its totient is φ = 1094902608.

The previous prime is 2189957321. The next prime is 2189957327. The reversal of 2189957326 is 6237599812.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189957321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10195 + ... + 66961.

It is an arithmetic number, because the mean of its divisors is an integer number (410645520).

Almost surely, 2^2189957326 is an apocalyptic number.

2189957326 is a deficient number, since it is larger than the sum of its proper divisors (1095206834).

2189957326 is a wasteful number, since it uses less digits than its factorization.

2189957326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76058.

The product of its digits is 1632960, while the sum is 52.

The square root of 2189957326 is about 46796.9798811846. The cubic root of 2189957326 is about 1298.6094254968.

The spelling of 2189957326 in words is "two billion, one hundred eighty-nine million, nine hundred fifty-seven thousand, three hundred twenty-six".