144444560 has 40 divisors (see below), whose sum is σ = 361669560. Its totient is φ = 53332992.

The previous prime is 144444551. The next prime is 144444581. The reversal of 144444560 is 65444441.

It can be written as a sum of positive squares in 4 ways, for example, as 9048064 + 135396496 = 3008^2 + 11636^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 68405 + ... + 70484.

It is an arithmetic number, because the mean of its divisors is an integer number (9041739).

Almost surely, 2^144444560 is an apocalyptic number.

144444560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144444560 is an abundant number, since it is smaller than the sum of its proper divisors (217225000).

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

144444560 is a wasteful number, since it uses less digits than its factorization.

144444560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138915 (or 138909 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 144444560 is about 12018.5090589474. The cubic root of 144444560 is about 524.6871121270.

The spelling of 144444560 in words is "one hundred forty-four million, four hundred forty-four thousand, five hundred sixty".