244891 has 4 divisors (see below), whose sum is σ = 257800. Its totient is φ = 231984.

The previous prime is 244889. The next prime is 244897. The reversal of 244891 is 198442.

244891 = T₉₄ + T₉₅ + ... + T₁₃₁.

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 244891 - 2¹ = 244889 is a prime.

It is a Duffinian number.

244891 is a lucky number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (244897) 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, 6426 + ... + 6463.

It is an arithmetic number, because the mean of its divisors is an integer number (64450).

2²⁴⁴⁸⁹¹ is an apocalyptic number.

244891 is a deficient number, since it is larger than the sum of its proper divisors (12909).

244891 is a wasteful number, since it uses less digits than its factorization.

244891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12908.

The product of its digits is 2304, while the sum is 28.

The square root of 244891 is about 494.8646279539. The cubic root of 244891 is about 62.5639665102.

The spelling of 244891 in words is "two hundred forty-four thousand, eight hundred ninety-one".