144609928 has 32 divisors (see below), whose sum is σ = 275254560. Its totient is φ = 71216640.

The previous prime is 144609923. The next prime is 144609937. The reversal of 144609928 is 829906441.

144609928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (144609923) 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 in 7 ways as a sum of consecutive naturals, for example, 256575 + ... + 257137.

It is an arithmetic number, because the mean of its divisors is an integer number (8601705).

Almost surely, 2^144609928 is an apocalyptic number.

It is an amenable number.

144609928 is a deficient number, since it is larger than the sum of its proper divisors (130644632).

144609928 is a wasteful number, since it uses less digits than its factorization.

144609928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 144609928 is about 12025.3868129054. The cubic root of 144609928 is about 524.8872658924.

The spelling of 144609928 in words is "one hundred forty-four million, six hundred nine thousand, nine hundred twenty-eight".