2268009 has 6 divisors (see below), whose sum is σ = 3276026. Its totient is φ = 1512000.

The previous prime is 2268001. The next prime is 2268031. The reversal of 2268009 is 9008622.

2268009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1904400 + 363609 = 1380^2 + 603^2 .

It is not a de Polignac number, because 2268009 - 2³ = 2268001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2268001) 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 5 ways as a sum of consecutive naturals, for example, 125992 + ... + 126009.

2^2268009 is an apocalyptic number.

It is an amenable number.

2268009 is a deficient number, since it is larger than the sum of its proper divisors (1008017).

2268009 is a wasteful number, since it uses less digits than its factorization.

2268009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252007 (or 252004 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2268009 is about 1505.9910358299. The cubic root of 2268009 is about 131.3857479868.

Adding to 2268009 its sum of digits (27), we get a square (2268036 = 1506²).

The spelling of 2268009 in words is "two million, two hundred sixty-eight thousand, nine".