2144266 has 4 divisors (see below), whose sum is σ = 3216402. Its totient is φ = 1072132.

The previous prime is 2144251. The next prime is 2144269. The reversal of 2144266 is 6624412.

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

It can be written as a sum of positive squares in only one way, i.e., 1809025 + 335241 = 1345^2 + 579^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2144266.

It is not an unprimeable number, because it can be changed into a prime (2144269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536065 + ... + 536068.

2^2144266 is an apocalyptic number.

2144266 is a deficient number, since it is larger than the sum of its proper divisors (1072136).

2144266 is a wasteful number, since it uses less digits than its factorization.

2144266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072135.

The product of its digits is 2304, while the sum is 25.

The square root of 2144266 is about 1464.3312466788. The cubic root of 2144266 is about 128.9514469844.

Adding to 2144266 its reverse (6624412), we get a palindrome (8768678).

The spelling of 2144266 in words is "two million, one hundred forty-four thousand, two hundred sixty-six".