144420744 has 32 divisors (see below), whose sum is σ = 388825920. Its totient is φ = 44437056.

The previous prime is 144420743. The next prime is 144420799. The reversal of 144420744 is 447024441.

144420744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (144420743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231132 + ... + 231755.

It is an arithmetic number, because the mean of its divisors is an integer number (12150810).

Almost surely, 2^144420744 is an apocalyptic number.

It is an amenable number.

144420744 is an abundant number, since it is smaller than the sum of its proper divisors (244405176).

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

144420744 is a wasteful number, since it uses less digits than its factorization.

144420744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462909 (or 462905 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 30.

The square root of 144420744 is about 12017.5182130089. The cubic root of 144420744 is about 524.6582737613.

The spelling of 144420744 in words is "one hundred forty-four million, four hundred twenty thousand, seven hundred forty-four".