2289005 has 8 divisors (see below), whose sum is σ = 2821272. Its totient is φ = 1781568.

The previous prime is 2288953. The next prime is 2289013. The reversal of 2289005 is 5009822.

It can be written as a sum of positive squares in 4 ways, for example, as 635209 + 1653796 = 797^2 + 1286^2 .

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 2289005 - 2⁸ = 2288749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6002 + ... + 6371.

It is an arithmetic number, because the mean of its divisors is an integer number (352659).

2^2289005 is an apocalyptic number.

It is an amenable number.

2289005 is a deficient number, since it is larger than the sum of its proper divisors (532267).

2289005 is a wasteful number, since it uses less digits than its factorization.

2289005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12415.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2289005 is about 1512.9458020696. The cubic root of 2289005 is about 131.7899360083.

The spelling of 2289005 in words is "two million, two hundred eighty-nine thousand, five".