244643 has 4 divisors (see below), whose sum is σ = 279600. Its totient is φ = 209688.

The previous prime is 244639. The next prime is 244667. The reversal of 244643 is 346442.

It is a happy number.

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 244643 - 2² = 244639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244603) 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, 17468 + ... + 17481.

It is an arithmetic number, because the mean of its divisors is an integer number (69900).

2²⁴⁴⁶⁴³ is an apocalyptic number.

244643 is a deficient number, since it is larger than the sum of its proper divisors (34957).

244643 is an equidigital number, since it uses as much as digits as its factorization.

244643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34956.

The product of its digits is 2304, while the sum is 23.

The square root of 244643 is about 494.6139909060. The cubic root of 244643 is about 62.5428399624.

The spelling of 244643 in words is "two hundred forty-four thousand, six hundred forty-three".