144403844 has 24 divisors (see below), whose sum is σ = 283980480. Its totient is φ = 63749664.

The previous prime is 144403843. The next prime is 144403849. The reversal of 144403844 is 448304441.

It is a self number, because there is not a number n which added to its sum of digits gives 144403844.

It is not an unprimeable number, because it can be changed into a prime (144403843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59174 + ... + 61565.

It is an arithmetic number, because the mean of its divisors is an integer number (11832520).

Almost surely, 2^144403844 is an apocalyptic number.

It is an amenable number.

144403844 is a deficient number, since it is larger than the sum of its proper divisors (139576636).

144403844 is a wasteful number, since it uses less digits than its factorization.

144403844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120779 (or 120777 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 144403844 is about 12016.8150522507. The cubic root of 144403844 is about 524.6378079324.

The spelling of 144403844 in words is "one hundred forty-four million, four hundred three thousand, eight hundred forty-four".