2259389 has 4 divisors (see below), whose sum is σ = 2464800. Its totient is φ = 2053980.

The previous prime is 2259377. The next prime is 2259391. The reversal of 2259389 is 9839522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2259389 - 2⁸ = 2259133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 102689 + ... + 102710.

It is an arithmetic number, because the mean of its divisors is an integer number (616200).

2^2259389 is an apocalyptic number.

It is an amenable number.

2259389 is a deficient number, since it is larger than the sum of its proper divisors (205411).

2259389 is a wasteful number, since it uses less digits than its factorization.

2259389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205410.

The product of its digits is 38880, while the sum is 38.

The square root of 2259389 is about 1503.1264085232. The cubic root of 2259389 is about 131.2190844797.

The spelling of 2259389 in words is "two million, two hundred fifty-nine thousand, three hundred eighty-nine".