144344540 has 24 divisors (see below), whose sum is σ = 304391472. Its totient is φ = 57496320.

The previous prime is 144344521. The next prime is 144344549. The reversal of 144344540 is 45443441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144344549) 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, 10154 + ... + 19793.

It is an arithmetic number, because the mean of its divisors is an integer number (12682978).

Almost surely, 2^144344540 is an apocalyptic number.

144344540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144344540 is an abundant number, since it is smaller than the sum of its proper divisors (160046932).

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

144344540 is a wasteful number, since it uses less digits than its factorization.

144344540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30197 (or 30195 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 144344540 is about 12014.3472565096. The cubic root of 144344540 is about 524.5659784025.

Adding to 144344540 its reverse (45443441), we get a palindrome (189787981).

The spelling of 144344540 in words is "one hundred forty-four million, three hundred forty-four thousand, five hundred forty".