2228305 has 8 divisors (see below), whose sum is σ = 2694312. Its totient is φ = 1769088.

The previous prime is 2228299. The next prime is 2228321. The reversal of 2228305 is 5038222.

It can be written as a sum of positive squares in 4 ways, for example, as 976144 + 1252161 = 988^2 + 1119^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2228305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (336789).

2^2228305 is an apocalyptic number.

It is an amenable number.

2228305 is a deficient number, since it is larger than the sum of its proper divisors (466007).

2228305 is a wasteful number, since it uses less digits than its factorization.

2228305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2228305 is about 1492.7508164459. The cubic root of 2228305 is about 130.6145459152.

The spelling of 2228305 in words is "two million, two hundred twenty-eight thousand, three hundred five".