2280209 has 4 divisors (see below), whose sum is σ = 2400240. Its totient is φ = 2160180.

The previous prime is 2280203. The next prime is 2280221. The reversal of 2280209 is 9020822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2280209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2280203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59987 + ... + 60024.

It is an arithmetic number, because the mean of its divisors is an integer number (600060).

2^2280209 is an apocalyptic number.

It is an amenable number.

2280209 is a deficient number, since it is larger than the sum of its proper divisors (120031).

2280209 is a wasteful number, since it uses less digits than its factorization.

2280209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120030.

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

The square root of 2280209 is about 1510.0360922839. The cubic root of 2280209 is about 131.6209088091.

The spelling of 2280209 in words is "two million, two hundred eighty thousand, two hundred nine".