2381289 has 8 divisors (see below), whose sum is σ = 3342240. Its totient is φ = 1503936.

The previous prime is 2381287. The next prime is 2381303. The reversal of 2381289 is 9821832.

2381289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2381289 - 2¹ = 2381287 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2381287) 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 7 ways as a sum of consecutive naturals, for example, 20832 + ... + 20945.

It is an arithmetic number, because the mean of its divisors is an integer number (417780).

2^2381289 is an apocalyptic number.

It is an amenable number.

2381289 is a deficient number, since it is larger than the sum of its proper divisors (960951).

2381289 is a wasteful number, since it uses less digits than its factorization.

2381289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41799.

The product of its digits is 6912, while the sum is 33.

The square root of 2381289 is about 1543.1425728040. The cubic root of 2381289 is about 133.5377441005.

The spelling of 2381289 in words is "two million, three hundred eighty-one thousand, two hundred eighty-nine".