2208305 has 8 divisors (see below), whose sum is σ = 2890944. Its totient is φ = 1606000.

The previous prime is 2208281. The next prime is 2208319. The reversal of 2208305 is 5038022.

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

It is not a de Polignac number, because 2208305 - 2¹⁰ = 2207281 is a prime.

It is a super-2 number, since 2×2208305² = 9753221946050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20021 + ... + 20130.

It is an arithmetic number, because the mean of its divisors is an integer number (361368).

2^2208305 is an apocalyptic number.

It is an amenable number.

2208305 is a deficient number, since it is larger than the sum of its proper divisors (682639).

2208305 is a wasteful number, since it uses less digits than its factorization.

2208305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40167.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2208305 is about 1486.0366751867. The cubic root of 2208305 is about 130.2225969370. Note that the first 3 decimals are identical.

The spelling of 2208305 in words is "two million, two hundred eight thousand, three hundred five".