2289138 has 8 divisors (see below), whose sum is σ = 4578288. Its totient is φ = 763044.

The previous prime is 2289127. The next prime is 2289143. The reversal of 2289138 is 8319822.

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

2289138 is an admirable number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2289099 and 2289108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190756 + ... + 190767.

It is an arithmetic number, because the mean of its divisors is an integer number (572286).

2^2289138 is an apocalyptic number.

2289138 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.

2289138 is a wasteful number, since it uses less digits than its factorization.

2289138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381528.

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

The square root of 2289138 is about 1512.9897554181. The cubic root of 2289138 is about 131.7924884597.

The spelling of 2289138 in words is "two million, two hundred eighty-nine thousand, one hundred thirty-eight".