144224140 has 24 divisors (see below), whose sum is σ = 303851520. Its totient is φ = 57502848.

The previous prime is 144224111. The next prime is 144224149. The reversal of 144224140 is 41422441.

It is not an unprimeable number, because it can be changed into a prime (144224149) 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 7 ways as a sum of consecutive naturals, for example, 5260 + ... + 17779.

It is an arithmetic number, because the mean of its divisors is an integer number (12660480).

Almost surely, 2^144224140 is an apocalyptic number.

144224140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144224140 is an abundant number, since it is smaller than the sum of its proper divisors (159627380).

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

144224140 is a wasteful number, since it uses less digits than its factorization.

144224140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23361 (or 23359 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 144224140 is about 12009.3355353242. The cubic root of 144224140 is about 524.4200883161.

Adding to 144224140 its reverse (41422441), we get a palindrome (185646581).

The spelling of 144224140 in words is "one hundred forty-four million, two hundred twenty-four thousand, one hundred forty".