2259845 has 8 divisors (see below), whose sum is σ = 3099264. Its totient is φ = 1549584.

The previous prime is 2259833. The next prime is 2259847. The reversal of 2259845 is 5489522.

It is a happy number.

2259845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2259845 - 2⁶ = 2259781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 64567 = 2259845 / (2 + 2 + 5 + 9 + 8 + 4 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259847) 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 7 ways as a sum of consecutive naturals, for example, 32249 + ... + 32318.

It is an arithmetic number, because the mean of its divisors is an integer number (387408).

2^2259845 is an apocalyptic number.

It is an amenable number.

2259845 is a deficient number, since it is larger than the sum of its proper divisors (839419).

2259845 is an equidigital number, since it uses as much as digits as its factorization.

2259845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64579.

The product of its digits is 28800, while the sum is 35.

The square root of 2259845 is about 1503.2780847202. The cubic root of 2259845 is about 131.2279116268.

It can be divided in two parts, 2 and 259845, that multiplied together give a triangular number (519690 = T₁₀₁₉).

The spelling of 2259845 in words is "two million, two hundred fifty-nine thousand, eight hundred forty-five".