144368439 has 8 divisors (see below), whose sum is σ = 193489392. Its totient is φ = 95746560.

The previous prime is 144368407. The next prime is 144368459. The reversal of 144368439 is 934863441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144368439 - 2⁵ = 144368407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144368439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144368459) 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, 124092 + ... + 125249.

It is an arithmetic number, because the mean of its divisors is an integer number (24186174).

Almost surely, 2^144368439 is an apocalyptic number.

144368439 is a deficient number, since it is larger than the sum of its proper divisors (49120953).

144368439 is a wasteful number, since it uses less digits than its factorization.

144368439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249537.

The product of its digits is 248832, while the sum is 42.

The square root of 144368439 is about 12015.3418178594. The cubic root of 144368439 is about 524.5949274492.

The spelling of 144368439 in words is "one hundred forty-four million, three hundred sixty-eight thousand, four hundred thirty-nine".