144431134440 has 64 divisors (see below), whose sum is σ = 433344643200. Its totient is φ = 38510414592.

The previous prime is 144431134417. The next prime is 144431134447. The reversal of 144431134440 is 44431134441.

144431134440 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×144431134440² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144431134447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016829 + ... + 1150131.

It is an arithmetic number, because the mean of its divisors is an integer number (6771010050).

Almost surely, 2^144431134440 is an apocalyptic number.

144431134440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144431134440 is an abundant number, since it is smaller than the sum of its proper divisors (288913508760).

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

144431134440 is a wasteful number, since it uses less digits than its factorization.

144431134440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142346 (or 142342 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 144431134440 its reverse (44431134441), we get a palindrome (188862268881).

Subtracting from 144431134440 its reverse (44431134441), we obtain a palindrome (99999999999).

The spelling of 144431134440 in words is "one hundred forty-four billion, four hundred thirty-one million, one hundred thirty-four thousand, four hundred forty".