144043440 has 80 divisors (see below), whose sum is σ = 450947328. Its totient is φ = 38032128.

The previous prime is 144043439. The next prime is 144043441. The reversal of 144043440 is 44340441.

144043440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144043439) and next prime (144043441).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 144043440.

It is not an unprimeable number, because it can be changed into a prime (144043441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21807 + ... + 27633.

Almost surely, 2^144043440 is an apocalyptic number.

144043440 is a gapful number since it is divisible by the number (10) 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 144043440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225473664).

144043440 is an abundant number, since it is smaller than the sum of its proper divisors (306903888).

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

144043440 is a wasteful number, since it uses less digits than its factorization.

144043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946 (or 5940 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 144043440 is about 12001.8098635164. The cubic root of 144043440 is about 524.2009795642.

Adding to 144043440 its reverse (44340441), we get a palindrome (188383881).

The spelling of 144043440 in words is "one hundred forty-four million, forty-three thousand, four hundred forty".