209044 has 12 divisors (see below), whose sum is σ = 399168. Its totient is φ = 95000.

The previous prime is 209039. The next prime is 209063. The reversal of 209044 is 440902.

209044 is nontrivially palindromic in base 15.

It is a congruent number.

It is an unprimeable number.

209044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2332 + ... + 2419.

It is an arithmetic number, because the mean of its divisors is an integer number (33264).

2²⁰⁹⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

209044 is a deficient number, since it is larger than the sum of its proper divisors (190124).

209044 is a wasteful number, since it uses less digits than its factorization.

209044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766 (or 4764 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 209044 is about 457.2132981443. The cubic root of 209044 is about 59.3488856536.

Adding to 209044 its reverse (440902), we get a palindrome (649946).

The spelling of 209044 in words is "two hundred nine thousand, forty-four".