144444 has 12 divisors (see below), whose sum is σ = 337064. Its totient is φ = 48144.

The previous prime is 144439. The next prime is 144451. The reversal of 144444 is 444441.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

144444 is a modest number, since divided by 444 gives 144 as remainder.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 144444.

It is a congruent number.

It is an unprimeable number.

144444 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6007 + ... + 6030.

2¹⁴⁴⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

144444 is an abundant number, since it is smaller than the sum of its proper divisors (192620).

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

144444 is a wasteful number, since it uses less digits than its factorization.

144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12044 (or 12042 counting only the distinct ones).

The product of its digits is 1024, while the sum is 21.

The square root of 144444 is about 380.0578903273. The cubic root of 144444 is about 52.4686434069.

Adding to 144444 its reverse (444441), we get a palindrome (588885).

It can be divided in two parts, 1444 and 44, that multiplied together give a palindrome (63536).

The spelling of 144444 in words is "one hundred forty-four thousand, four hundred forty-four", and thus it is an iban number.