244445 has 4 divisors (see below), whose sum is σ = 293340. Its totient is φ = 195552.

The previous prime is 244429. The next prime is 244451. The reversal of 244445 is 544442.

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

It can be written as a sum of positive squares in 2 ways, for example, as 116281 + 128164 = 341^2 + 358^2 .

It is a cyclic number.

It is not a de Polignac number, because 244445 - 2⁴ = 244429 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 244445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24440 + ... + 24449.

It is an arithmetic number, because the mean of its divisors is an integer number (73335).

2²⁴⁴⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

244445 is a deficient number, since it is larger than the sum of its proper divisors (48895).

244445 is an equidigital number, since it uses as much as digits as its factorization.

244445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48894.

The product of its digits is 2560, while the sum is 23.

The square root of 244445 is about 494.4137943059. The cubic root of 244445 is about 62.5259625470.

Adding to 244445 its reverse (544442), we get a palindrome (788887).

The spelling of 244445 in words is "two hundred forty-four thousand, four hundred forty-five".