144540440000 has 280 divisors, whose sum is σ = 396913047168. Its totient is φ = 51765120000.

The previous prime is 144540439999. The next prime is 144540440003. The reversal of 144540440000 is 44045441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144540440003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29477549 + ... + 29482451.

Almost surely, 2^144540440000 is an apocalyptic number.

144540440000 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 144540440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198456523584).

144540440000 is an abundant number, since it is smaller than the sum of its proper divisors (252372607168).

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

144540440000 is an equidigital number, since it uses as much as digits as its factorization.

144540440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013 (or 4988 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 144540440000 its reverse (44045441), we get a palindrome (144584485441).

The spelling of 144540440000 in words is "one hundred forty-four billion, five hundred forty million, four hundred forty thousand".