2289305 has 16 divisors (see below), whose sum is σ = 3037824. Its totient is φ = 1647360.

The previous prime is 2289281. The next prime is 2289349. The reversal of 2289305 is 5039822.

It is not a de Polignac number, because 2289305 - 2¹⁰ = 2288281 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2¹³ + 8⁷ + 9⁴ + 3¹¹ + 0 + 5³ .

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1370 + ... + 2540.

It is an arithmetic number, because the mean of its divisors is an integer number (189864).

2^2289305 is an apocalyptic number.

It is an amenable number.

2289305 is a deficient number, since it is larger than the sum of its proper divisors (748519).

2289305 is a wasteful number, since it uses less digits than its factorization.

2289305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2289305 is about 1513.0449431527. The cubic root of 2289305 is about 131.7956932774.

The spelling of 2289305 in words is "two million, two hundred eighty-nine thousand, three hundred five".