244039 has 4 divisors (see below), whose sum is σ = 247456. Its totient is φ = 240624.

The previous prime is 244033. The next prime is 244043. The reversal of 244039 is 930442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 244039 - 2⁷ = 243911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244033) 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, 1599 + ... + 1744.

It is an arithmetic number, because the mean of its divisors is an integer number (61864).

244039 is a Friedman number, since it can be written as 494^(2+0)+3, using all its digits and the basic arithmetic operations.

2²⁴⁴⁰³⁹ is an apocalyptic number.

244039 is a deficient number, since it is larger than the sum of its proper divisors (3417).

244039 is an equidigital number, since it uses as much as digits as its factorization.

244039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 244039 is about 494.0030364279. The cubic root of 244039 is about 62.4913267965.

The spelling of 244039 in words is "two hundred forty-four thousand, thirty-nine".