144397888 has 14 divisors (see below), whose sum is σ = 286539686. Its totient is φ = 72198912.

The previous prime is 144397879. The next prime is 144397889. The reversal of 144397888 is 888793441.

It can be written as a sum of positive squares in only one way, i.e., 143808064 + 589824 = 11992^2 + 768^2 .

It is not an unprimeable number, because it can be changed into a prime (144397889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128045 + ... + 1128172.

Almost surely, 2^144397888 is an apocalyptic number.

It is an amenable number.

144397888 is a deficient number, since it is larger than the sum of its proper divisors (142141798).

144397888 is an equidigital number, since it uses as much as digits as its factorization.

144397888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256229 (or 2256219 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 144397888 is about 12016.5672302867. The cubic root of 144397888 is about 524.6305948610.

The spelling of 144397888 in words is "one hundred forty-four million, three hundred ninety-seven thousand, eight hundred eighty-eight".