144544224 has 48 divisors (see below), whose sum is σ = 413925120. Its totient is φ = 43800960.

The previous prime is 144544189. The next prime is 144544243. The reversal of 144544224 is 422445441.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 144544191 and 144544200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67384 + ... + 69495.

It is an arithmetic number, because the mean of its divisors is an integer number (8623440).

Almost surely, 2^144544224 is an apocalyptic number.

It is an amenable number.

144544224 is an abundant number, since it is smaller than the sum of its proper divisors (269380896).

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

144544224 is a wasteful number, since it uses less digits than its factorization.

144544224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136903 (or 136895 counting only the distinct ones).

The product of its digits is 20480, while the sum is 30.

The square root of 144544224 is about 12022.6546153501. The cubic root of 144544224 is about 524.8077590936.

Adding to 144544224 its reverse (422445441), we get a palindrome (566989665).

The spelling of 144544224 in words is "one hundred forty-four million, five hundred forty-four thousand, two hundred twenty-four".