16444 has 6 divisors (see below), whose sum is σ = 28784. Its totient is φ = 8220.

The previous prime is 16433. The next prime is 16447. The reversal of 16444 is 44461.

It is a super-3 number, since 3×16444³ = 13339626169152, which contains 333 as substring.

16444 is a modest number, since divided by 444 gives 16 as remainder.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16447) by changing a digit.

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, 2052 + ... + 2059.

2¹⁶⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

16444 is a deficient number, since it is larger than the sum of its proper divisors (12340).

16444 is a wasteful number, since it uses less digits than its factorization.

16444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115 (or 4113 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 16444 is about 128.2341608153. The cubic root of 16444 is about 25.4293829885.

The spelling of 16444 in words is "sixteen thousand, four hundred forty-four".