144224544 has 48 divisors (see below), whose sum is σ = 379518048. Its totient is φ = 47956992.

The previous prime is 144224543. The next prime is 144224579. The reversal of 144224544 is 445422441.

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

It is not an unprimeable number, because it can be changed into a prime (144224543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43224 + ... + 46440.

It is an arithmetic number, because the mean of its divisors is an integer number (7906626).

Almost surely, 2^144224544 is an apocalyptic number.

It is an amenable number.

144224544 is an abundant number, since it is smaller than the sum of its proper divisors (235293504).

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

144224544 is a wasteful number, since it uses less digits than its factorization.

144224544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697 (or 3689 counting only the distinct ones).

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

The square root of 144224544 is about 12009.3523555602. The cubic root of 144224544 is about 524.4205779833.

Adding to 144224544 its reverse (445422441), we get a palindrome (589646985).

The spelling of 144224544 in words is "one hundred forty-four million, two hundred twenty-four thousand, five hundred forty-four".