144240240 has 80 divisors (see below), whose sum is σ = 473460768. Its totient is φ = 36200448.

The previous prime is 144240209. The next prime is 144240247. The reversal of 144240240 is 42042441.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144240247) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13597 + ... + 21756.

Almost surely, 2^144240240 is an apocalyptic number.

144240240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144240240 is an abundant number, since it is smaller than the sum of its proper divisors (329220528).

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

144240240 is a wasteful number, since it uses less digits than its factorization.

144240240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35386 (or 35380 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 144240240 is about 12010.0058284749. The cubic root of 144240240 is about 524.4396015757.

Adding to 144240240 its reverse (42042441), we get a palindrome (186282681).

The spelling of 144240240 in words is "one hundred forty-four million, two hundred forty thousand, two hundred forty".