2144447 has 4 divisors (see below), whose sum is σ = 2157456. Its totient is φ = 2131440.

The previous prime is 2144437. The next prime is 2144449. The reversal of 2144447 is 7444412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2144447 - 2⁶ = 2144383 is a prime.

It is a Duffinian number.

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 in 3 ways as a sum of consecutive naturals, for example, 6254 + ... + 6587.

It is an arithmetic number, because the mean of its divisors is an integer number (539364).

2^2144447 is an apocalyptic number.

2144447 is a deficient number, since it is larger than the sum of its proper divisors (13009).

2144447 is a wasteful number, since it uses less digits than its factorization.

2144447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13008.

The product of its digits is 3584, while the sum is 26.

The square root of 2144447 is about 1464.3930483309. The cubic root of 2144447 is about 128.9550751965.

Adding to 2144447 its reverse (7444412), we get a palindrome (9588859).

The spelling of 2144447 in words is "two million, one hundred forty-four thousand, four hundred forty-seven".