144404244 has 36 divisors (see below), whose sum is σ = 367485300. Its totient is φ = 47809920.

The previous prime is 144404243. The next prime is 144404251. The reversal of 144404244 is 442404441.

144404244 is a `hidden beast` number, since 14 + 4 + 404 + 244 = 666.

144404244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 92736900 + 51667344 = 9630^2 + 7188^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144404243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8097 + ... + 18824.

It is an arithmetic number, because the mean of its divisors is an integer number (10207925).

Almost surely, 2^144404244 is an apocalyptic number.

It is an amenable number.

144404244 is an abundant number, since it is smaller than the sum of its proper divisors (223081056).

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

144404244 is a wasteful number, since it uses less digits than its factorization.

144404244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27080 (or 27075 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 144404244 is about 12016.8316955843. The cubic root of 144404244 is about 524.6382923492.

Adding to 144404244 its reverse (442404441), we get a palindrome (586808685).

The spelling of 144404244 in words is "one hundred forty-four million, four hundred four thousand, two hundred forty-four".