120440144 has 40 divisors (see below), whose sum is σ = 265643712. Its totient is φ = 52363520.

The previous prime is 120440129. The next prime is 120440171. The reversal of 120440144 is 441044021.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 10829 + ... + 18924.

Almost surely, 2^120440144 is an apocalyptic number.

It is an amenable number.

120440144 is an abundant number, since it is smaller than the sum of its proper divisors (145203568).

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

120440144 is a wasteful number, since it uses less digits than its factorization.

120440144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29795 (or 29789 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 120440144 is about 10974.5224953070. The cubic root of 120440144 is about 493.8447282009.

Adding to 120440144 its reverse (441044021), we get a palindrome (561484165).

The spelling of 120440144 in words is "one hundred twenty million, four hundred forty thousand, one hundred forty-four".