2285209 has 4 divisors (see below), whose sum is σ = 2295504. Its totient is φ = 2274916.

The previous prime is 2285189. The next prime is 2285219. The reversal of 2285209 is 9025822.

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 not a de Polignac number, because 2285209 - 2⁹ = 2284697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2285219) 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, 4807 + ... + 5260.

It is an arithmetic number, because the mean of its divisors is an integer number (573876).

2^2285209 is an apocalyptic number.

It is an amenable number.

2285209 is a deficient number, since it is larger than the sum of its proper divisors (10295).

2285209 is a wasteful number, since it uses less digits than its factorization.

2285209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10294.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2285209 is about 1511.6907752580. The cubic root of 2285209 is about 131.7170438713.

The spelling of 2285209 in words is "two million, two hundred eighty-five thousand, two hundred nine".