144322431440 has 40 divisors (see below), whose sum is σ = 366054169248. Its totient is φ = 52480883840.

The previous prime is 144322431433. The next prime is 144322431511. The reversal of 144322431440 is 44134223441.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 144322431397 and 144322431406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82000502 + ... + 82002261.

Almost surely, 2^144322431440 is an apocalyptic number.

144322431440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144322431440 is an abundant number, since it is smaller than the sum of its proper divisors (221731737808).

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

144322431440 is a wasteful number, since it uses less digits than its factorization.

144322431440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164002787 (or 164002781 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 144322431440 its reverse (44134223441), we get a palindrome (188456654881).

The spelling of 144322431440 in words is "one hundred forty-four billion, three hundred twenty-two million, four hundred thirty-one thousand, four hundred forty".