247244 has 12 divisors (see below), whose sum is σ = 437304. Its totient is φ = 122304.

The previous prime is 247241. The next prime is 247249. The reversal of 247244 is 442742.

It is a super-2 number, since 2×247244² = 122259191072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (247241) 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, 179 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (36442).

2²⁴⁷²⁴⁴ is an apocalyptic number.

It is an amenable number.

247244 is a deficient number, since it is larger than the sum of its proper divisors (190060).

247244 is a wasteful number, since it uses less digits than its factorization.

247244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 662 counting only the distinct ones).

The product of its digits is 1792, while the sum is 23.

The square root of 247244 is about 497.2363623067. The cubic root of 247244 is about 62.7637071054.

Adding to 247244 its reverse (442742), we get a palindrome (689986).

The spelling of 247244 in words is "two hundred forty-seven thousand, two hundred forty-four", and thus it is an iban number.