2144444 has 6 divisors (see below), whose sum is σ = 3752784. Its totient is φ = 1072220.

The previous prime is 2144437. The next prime is 2144449. The reversal of 2144444 is 4444412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268052 + ... + 268059.

It is an arithmetic number, because the mean of its divisors is an integer number (625464).

2^2144444 is an apocalyptic number.

It is an amenable number.

2144444 is a deficient number, since it is larger than the sum of its proper divisors (1608340).

2144444 is a wasteful number, since it uses less digits than its factorization.

2144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536115 (or 536113 counting only the distinct ones).

The product of its digits is 2048, while the sum is 23.

The square root of 2144444 is about 1464.3920240154. The cubic root of 2144444 is about 128.9550150620.

Adding to 2144444 its reverse (4444412), we get a palindrome (6588856).

Subtracting 2144444 from its reverse (4444412), we obtain a cube (2299968 = 132³).

The spelling of 2144444 in words is "two million, one hundred forty-four thousand, four hundred forty-four".