144439344 has 120 divisors (see below), whose sum is σ = 489209760. Its totient is φ = 38836224.

The previous prime is 144439313. The next prime is 144439367. The reversal of 144439344 is 443934441.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 144439299 and 144439308.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 12922 + ... + 21350.

It is an arithmetic number, because the mean of its divisors is an integer number (4076748).

Almost surely, 2^144439344 is an apocalyptic number.

144439344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144439344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244604880).

144439344 is an abundant number, since it is smaller than the sum of its proper divisors (344770416).

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

144439344 is a wasteful number, since it uses less digits than its factorization.

144439344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8467 (or 8458 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 144439344 is about 12018.2920583584. The cubic root of 144439344 is about 524.6807964376.

The spelling of 144439344 in words is "one hundred forty-four million, four hundred thirty-nine thousand, three hundred forty-four".