144042455540 has 96 divisors (see below), whose sum is σ = 326559340800. Its totient is φ = 53166503936.

The previous prime is 144042455539. The next prime is 144042455567. The reversal of 144042455540 is 45554240441.

It is a junction number, because it is equal to n+sod(n) for n = 144042455494 and 144042455503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43660811 + ... + 43664109.

It is an arithmetic number, because the mean of its divisors is an integer number (3401659800).

Almost surely, 2^144042455540 is an apocalyptic number.

144042455540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144042455540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163279670400).

144042455540 is an abundant number, since it is smaller than the sum of its proper divisors (182516885260).

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

144042455540 is a wasteful number, since it uses less digits than its factorization.

144042455540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801 (or 5799 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 144042455540 its reverse (45554240441), we get a palindrome (189596695981).

The spelling of 144042455540 in words is "one hundred forty-four billion, forty-two million, four hundred fifty-five thousand, five hundred forty".