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16944 = 243353

16944 has 20 divisors (see below), whose sum is σ = 43896. Its totient is φ = 5632.

The previous prime is 16943. The next prime is 16963. The reversal of 16944 is 44961.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (16943) 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, 129 + ... + 224.

216944 is an apocalyptic number.

It is an amenable number.

16944 is an abundant number, since it is smaller than the sum of its proper divisors (26952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21948).

16944 is a wasteful number, since it uses less digits than its factorization.

16944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 358 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 16944 is about 130.1691207622. The cubic root of 16944 is about 25.6845511678.

It can be divided in two parts, 1694 and 4, that multiplied together give a palindrome (6776).

The spelling of 16944 in words is "sixteen thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 353 706 1059 1412 2118 2824 4236 5648 8472 16944