244389 has 4 divisors (see below), whose sum is σ = 325856. Its totient is φ = 162924.

The previous prime is 244381. The next prime is 244393. The reversal of 244389 is 983442.

It is a happy number.

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 not a de Polignac number, because 244389 - 2³ = 244381 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244381) 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, 40729 + ... + 40734.

It is an arithmetic number, because the mean of its divisors is an integer number (81464).

2²⁴⁴³⁸⁹ is an apocalyptic number.

It is an amenable number.

244389 is a deficient number, since it is larger than the sum of its proper divisors (81467).

244389 is an equidigital number, since it uses as much as digits as its factorization.

244389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81466.

The product of its digits is 6912, while the sum is 30.

The square root of 244389 is about 494.3571583380. The cubic root of 244389 is about 62.5211874833.

The spelling of 244389 in words is "two hundred forty-four thousand, three hundred eighty-nine".