244945 has 4 divisors (see below), whose sum is σ = 293940. Its totient is φ = 195952.

The previous prime is 244943. The next prime is 244957. The reversal of 244945 is 549442.

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 25921 + 219024 = 161^2 + 468^2 .

It is a cyclic number.

It is not a de Polignac number, because 244945 - 2¹ = 244943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (244943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24490 + ... + 24499.

It is an arithmetic number, because the mean of its divisors is an integer number (73485).

2²⁴⁴⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

244945 is a deficient number, since it is larger than the sum of its proper divisors (48995).

244945 is an equidigital number, since it uses as much as digits as its factorization.

244945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48994.

The product of its digits is 5760, while the sum is 28.

The square root of 244945 is about 494.9191853222. The cubic root of 244945 is about 62.5685647545.

The spelling of 244945 in words is "two hundred forty-four thousand, nine hundred forty-five".