244581 has 4 divisors (see below), whose sum is σ = 326112. Its totient is φ = 163052.

The previous prime is 244567. The next prime is 244583. The reversal of 244581 is 185442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 244581 - 2¹¹ = 242533 is a prime.

It is a super-2 number, since 2×244581² = 119639731122, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244583) 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, 40761 + ... + 40766.

It is an arithmetic number, because the mean of its divisors is an integer number (81528).

2²⁴⁴⁵⁸¹ is an apocalyptic number.

It is an amenable number.

244581 is a deficient number, since it is larger than the sum of its proper divisors (81531).

244581 is an equidigital number, since it uses as much as digits as its factorization.

244581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81530.

The product of its digits is 1280, while the sum is 24.

The square root of 244581 is about 494.5513117969. The cubic root of 244581 is about 62.5375560948.

The spelling of 244581 in words is "two hundred forty-four thousand, five hundred eighty-one".