2244144 has 40 divisors (see below), whose sum is σ = 6626560. Its totient is φ = 641088.

The previous prime is 2244139. The next prime is 2244157. The reversal of 2244144 is 4414422.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2244144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3004 + ... + 3675.

It is an arithmetic number, because the mean of its divisors is an integer number (165664).

2^2244144 is an apocalyptic number.

2244144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2244144 is an abundant number, since it is smaller than the sum of its proper divisors (4382416).

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

2244144 is a wasteful number, since it uses less digits than its factorization.

2244144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697 (or 6691 counting only the distinct ones).

The product of its digits is 1024, while the sum is 21.

The square root of 2244144 is about 1498.0467282431. The cubic root of 2244144 is about 130.9232890044.

Adding to 2244144 its reverse (4414422), we get a palindrome (6658566).

The spelling of 2244144 in words is "two million, two hundred forty-four thousand, one hundred forty-four".