144444616 has 8 divisors (see below), whose sum is σ = 270833670. Its totient is φ = 72222304.

The previous prime is 144444581. The next prime is 144444617. The reversal of 144444616 is 616444441.

It can be written as a sum of positive squares in only one way, i.e., 119902500 + 24542116 = 10950^2 + 4954^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (144444617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9027781 + ... + 9027796.

Almost surely, 2^144444616 is an apocalyptic number.

It is an amenable number.

144444616 is a deficient number, since it is larger than the sum of its proper divisors (126389054).

144444616 is a wasteful number, since it uses less digits than its factorization.

144444616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18055583 (or 18055579 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 144444616 is about 12018.5113886870. The cubic root of 144444616 is about 524.6871799326.

The spelling of 144444616 in words is "one hundred forty-four million, four hundred forty-four thousand, six hundred sixteen".