2249209 has 8 divisors (see below), whose sum is σ = 2315520. Its totient is φ = 2184000.

The previous prime is 2249207. The next prime is 2249213. The reversal of 2249209 is 9029422.

It is a happy number.

2249209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2249209 - 2¹ = 2249207 is a prime.

It is a super-2 number, since 2×2249209² = 10117882251362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2249207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5409 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (289440).

2^2249209 is an apocalyptic number.

2249209 is the 802-nd nonagonal number.

It is an amenable number.

2249209 is a deficient number, since it is larger than the sum of its proper divisors (66311).

2249209 is an equidigital number, since it uses as much as digits as its factorization.

2249209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2249209 is about 1499.7363101559. The cubic root of 2249209 is about 131.0217123074.

The spelling of 2249209 in words is "two million, two hundred forty-nine thousand, two hundred nine".