2105843389 has 8 divisors (see below), whose sum is σ = 2268508032. Its totient is φ = 1943275440.

The previous prime is 2105843357. The next prime is 2105843401. The reversal of 2105843389 is 9833485012.

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

It is a cyclic number.

It is not a de Polignac number, because 2105843389 - 2⁵ = 2105843357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105843689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24744 + ... + 69454.

It is an arithmetic number, because the mean of its divisors is an integer number (283563504).

Almost surely, 2^2105843389 is an apocalyptic number.

It is an amenable number.

2105843389 is a deficient number, since it is larger than the sum of its proper divisors (162664643).

2105843389 is a wasteful number, since it uses less digits than its factorization.

2105843389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48347.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 2105843389 is about 45889.4692603870. The cubic root of 2105843389 is about 1281.7658304383.

The spelling of 2105843389 in words is "two billion, one hundred five million, eight hundred forty-three thousand, three hundred eighty-nine".