209048 has 16 divisors (see below), whose sum is σ = 448080. Its totient is φ = 89568.

The previous prime is 209039. The next prime is 209063. The reversal of 209048 is 840902.

It is a congruent number.

It is an unprimeable 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, 1811 + ... + 1922.

It is an arithmetic number, because the mean of its divisors is an integer number (28005).

2²⁰⁹⁰⁴⁸ is an apocalyptic number.

209048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

209048 is an abundant number, since it is smaller than the sum of its proper divisors (239032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209048 is a wasteful number, since it uses less digits than its factorization.

209048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746 (or 3742 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 209048 is about 457.2176724493. The cubic root of 209048 is about 59.3492641928.

The spelling of 209048 in words is "two hundred nine thousand, forty-eight".