144031240 has 64 divisors (see below), whose sum is σ = 331752960. Its totient is φ = 56263680.

The previous prime is 144031219. The next prime is 144031241. The reversal of 144031240 is 42130441.

It is not an unprimeable number, because it can be changed into a prime (144031241) 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, 597520 + ... + 597760.

It is an arithmetic number, because the mean of its divisors is an integer number (5183640).

Almost surely, 2^144031240 is an apocalyptic number.

144031240 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 144031240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165876480).

144031240 is an abundant number, since it is smaller than the sum of its proper divisors (187721720).

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

144031240 is a wasteful number, since it uses less digits than its factorization.

144031240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 144031240 is about 12001.3015960770. The cubic root of 144031240 is about 524.1861797868.

Adding to 144031240 its reverse (42130441), we get a palindrome (186161681).

The spelling of 144031240 in words is "one hundred forty-four million, thirty-one thousand, two hundred forty".