144225240 has 64 divisors (see below), whose sum is σ = 433490400. Its totient is φ = 38387712.

The previous prime is 144225239. The next prime is 144225269. The reversal of 144225240 is 42522441.

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 144225240.

It is a congruent number.

It is an unprimeable number.

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, 101656 + ... + 103064.

Almost surely, 2^144225240 is an apocalyptic number.

144225240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144225240 is an abundant number, since it is smaller than the sum of its proper divisors (289265160).

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

144225240 is a wasteful number, since it uses less digits than its factorization.

144225240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276 (or 2272 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 144225240 is about 12009.3813329413. The cubic root of 144225240 is about 524.4214215664.

Adding to 144225240 its reverse (42522441), we get a palindrome (186747681).

The spelling of 144225240 in words is "one hundred forty-four million, two hundred twenty-five thousand, two hundred forty".