2259444 has 24 divisors (see below), whose sum is σ = 5751648. Its totient is φ = 684640.

The previous prime is 2259437. The next prime is 2259449. The reversal of 2259444 is 4449522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8427 + ... + 8690.

It is an arithmetic number, because the mean of its divisors is an integer number (239652).

2^2259444 is an apocalyptic number.

It is an amenable number.

2259444 is an abundant number, since it is smaller than the sum of its proper divisors (3492204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2259444 is a wasteful number, since it uses less digits than its factorization.

2259444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17135 (or 17133 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 2259444 is about 1503.1447036131. The cubic root of 2259444 is about 131.2201492205.

It can be divided in two parts, 225 and 9444, that added together give a palindrome (9669).

The spelling of 2259444 in words is "two million, two hundred fifty-nine thousand, four hundred forty-four".