244591 has 4 divisors (see below), whose sum is σ = 245752. Its totient is φ = 243432.

The previous prime is 244589. The next prime is 244597. The reversal of 244591 is 195442.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 244591 - 2¹ = 244589 is a prime.

It is a Duffinian number.

244591 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244597) 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, 165 + ... + 718.

It is an arithmetic number, because the mean of its divisors is an integer number (61438).

2²⁴⁴⁵⁹¹ is an apocalyptic number.

244591 is a deficient number, since it is larger than the sum of its proper divisors (1161).

244591 is an equidigital number, since it uses as much as digits as its factorization.

244591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160.

The product of its digits is 1440, while the sum is 25.

The square root of 244591 is about 494.5614218679. The cubic root of 244591 is about 62.5384083919.

The spelling of 244591 in words is "two hundred forty-four thousand, five hundred ninety-one".