144243040 has 48 divisors (see below), whose sum is σ = 346384080. Its totient is φ = 56747520.

The previous prime is 144243017. The next prime is 144243059. The reversal of 144243040 is 40342441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2371 + ... + 17149.

It is an arithmetic number, because the mean of its divisors is an integer number (7216335).

Almost surely, 2^144243040 is an apocalyptic number.

144243040 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 144243040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173192040).

144243040 is an abundant number, since it is smaller than the sum of its proper divisors (202141040).

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

144243040 is a wasteful number, since it uses less digits than its factorization.

144243040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14855 (or 14847 counting only the distinct ones).

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

The square root of 144243040 is about 12010.1223973780. The cubic root of 144243040 is about 524.4429950379.

Adding to 144243040 its reverse (40342441), we get a palindrome (184585481).

The spelling of 144243040 in words is "one hundred forty-four million, two hundred forty-three thousand, forty".