144234240 has 72 divisors (see below), whose sum is σ = 460660368. Its totient is φ = 38461440.

The previous prime is 144234221. The next prime is 144234241. The reversal of 144234240 is 42432441.

It is a happy number.

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 144234240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144234241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14941 + ... + 22620.

Almost surely, 2^144234240 is an apocalyptic number.

144234240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144234240 is an abundant number, since it is smaller than the sum of its proper divisors (316426128).

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

144234240 is an equidigital number, since it uses as much as digits as its factorization.

144234240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37585 (or 37571 counting only the distinct ones).

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

The square root of 144234240 is about 12009.7560341582. The cubic root of 144234240 is about 524.4323297232.

Adding to 144234240 its reverse (42432441), we get a palindrome (186666681).

The spelling of 144234240 in words is "one hundred forty-four million, two hundred thirty-four thousand, two hundred forty".