144239389420 has 24 divisors (see below), whose sum is σ = 346174534944. Its totient is φ = 49453504896.

The previous prime is 144239389397. The next prime is 144239389451. The reversal of 144239389420 is 24983932441.

It is a happy number.

144239389420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515140537 + ... + 515140816.

It is an arithmetic number, because the mean of its divisors is an integer number (14423938956).

Almost surely, 2^144239389420 is an apocalyptic number.

144239389420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144239389420 is an abundant number, since it is smaller than the sum of its proper divisors (201935145524).

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

144239389420 is a wasteful number, since it uses less digits than its factorization.

144239389420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030281369 (or 1030281367 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 144239389420 in words is "one hundred forty-four billion, two hundred thirty-nine million, three hundred eighty-nine thousand, four hundred twenty".