144404 has 12 divisors (see below), whose sum is σ = 272244. Its totient is φ = 66624.

The previous prime is 144383. The next prime is 144407. The reversal of 144404 is 404441.

144404 = T₄₇ + T₄₈ + ... + T₉₈.

It can be written as a sum of positive squares in 2 ways, for example, as 21904 + 122500 = 148^2 + 350^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144407) 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, 1337 + ... + 1440.

It is an arithmetic number, because the mean of its divisors is an integer number (22687).

2¹⁴⁴⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

144404 is a deficient number, since it is larger than the sum of its proper divisors (127840).

144404 is a wasteful number, since it uses less digits than its factorization.

144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 144404 is about 380.0052631214. The cubic root of 144404 is about 52.4637996855.

Adding to 144404 its reverse (404441), we get a palindrome (548845).

The spelling of 144404 in words is "one hundred forty-four thousand, four hundred four", and thus it is an iban number.