17944 has 8 divisors (see below), whose sum is σ = 33660. Its totient is φ = 8968.

The previous prime is 17939. The next prime is 17957. The reversal of 17944 is 44971.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×17944³ = 17333211505152, which contains 333 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

17944 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114 + ... + 1129.

2¹⁷⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

17944 is a deficient number, since it is larger than the sum of its proper divisors (15716).

17944 is a wasteful number, since it uses less digits than its factorization.

17944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2245 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 17944 is about 133.9552163971. The cubic root of 17944 is about 26.1802076497.

It can be divided in two parts, 17 and 944, that added together give a square (961 = 31²).

The spelling of 17944 in words is "seventeen thousand, nine hundred forty-four".