244661 has 4 divisors (see below), whose sum is σ = 247500. Its totient is φ = 241824.

The previous prime is 244639. The next prime is 244667. The reversal of 244661 is 166442.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 166442 = 2 ⋅83221.

It can be written as a sum of positive squares in 2 ways, for example, as 37636 + 207025 = 194^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 244661 - 2⁶ = 244597 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 244661.

It is not an unprimeable number, because it can be changed into a prime (244667) by changing a digit.

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, 1286 + ... + 1463.

It is an arithmetic number, because the mean of its divisors is an integer number (61875).

2²⁴⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

244661 is a deficient number, since it is larger than the sum of its proper divisors (2839).

244661 is an equidigital number, since it uses as much as digits as its factorization.

244661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838.

The product of its digits is 1152, while the sum is 23.

The square root of 244661 is about 494.6321865791. The cubic root of 244661 is about 62.5443738213.

The spelling of 244661 in words is "two hundred forty-four thousand, six hundred sixty-one".