Search a number
244257 = 3136263

244257 has 8 divisors (see below), whose sum is σ = 350784. Its totient is φ = 150288.

The previous prime is 244253. The next prime is 244261. The reversal of 244257 is 752442.

244257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (244253) and next prime (244261).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 244257 - 22 = 244253 is a prime.

It is a super-2 number, since 2×2442572 = 119322964098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (244253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3093 + ... + 3170.

It is an arithmetic number, because the mean of its divisors is an integer number (43848).

2244257 is an apocalyptic number.

It is an amenable number.

244257 is a deficient number, since it is larger than the sum of its proper divisors (106527).

244257 is a wasteful number, since it uses less digits than its factorization.

244257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6279.

The product of its digits is 2240, while the sum is 24.

The square root of 244257 is about 494.2236335911. The cubic root of 244257 is about 62.5099290892.

Adding to 244257 its reverse (752442), we get a palindrome (996699).

The spelling of 244257 in words is "two hundred forty-four thousand, two hundred fifty-seven".

Divisors: 1 3 13 39 6263 18789 81419 244257