144304240 has 80 divisors (see below), whose sum is σ = 356227200. Its totient is φ = 54210816.

The previous prime is 144304201. The next prime is 144304267. The reversal of 144304240 is 42403441.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210939 + ... + 211621.

It is an arithmetic number, because the mean of its divisors is an integer number (4452840).

Almost surely, 2^144304240 is an apocalyptic number.

144304240 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 144304240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178113600).

144304240 is an abundant number, since it is smaller than the sum of its proper divisors (211922960).

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

144304240 is a wasteful number, since it uses less digits than its factorization.

144304240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 144304240 is about 12012.6699779857. The cubic root of 144304240 is about 524.5171554574.

Adding to 144304240 its reverse (42403441), we get a palindrome (186707681).

The spelling of 144304240 in words is "one hundred forty-four million, three hundred four thousand, two hundred forty".