144440938 has 16 divisors (see below), whose sum is σ = 224532000. Its totient is φ = 69605872.

The previous prime is 144440929. The next prime is 144440951. The reversal of 144440938 is 839044441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 144440897 and 144440906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36333 + ... + 40111.

It is an arithmetic number, because the mean of its divisors is an integer number (14033250).

Almost surely, 2^144440938 is an apocalyptic number.

144440938 is a deficient number, since it is larger than the sum of its proper divisors (80091062).

144440938 is a wasteful number, since it uses less digits than its factorization.

144440938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 144440938 is about 12018.3583737547. The cubic root of 144440938 is about 524.6827265168.

The spelling of 144440938 in words is "one hundred forty-four million, four hundred forty thousand, nine hundred thirty-eight".