144414540 has 72 divisors (see below), whose sum is σ = 439163088. Its totient is φ = 38413440.

The previous prime is 144414521. The next prime is 144414563. The reversal of 144414540 is 45414441.

144414540 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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96639 + ... + 98121.

Almost surely, 2^144414540 is an apocalyptic number.

144414540 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 144414540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219581544).

144414540 is an abundant number, since it is smaller than the sum of its proper divisors (294748548).

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

144414540 is a wasteful number, since it uses less digits than its factorization.

144414540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 144414540 is about 12017.2600870581. The cubic root of 144414540 is about 524.6507609289.

Adding to 144414540 its reverse (45414441), we get a palindrome (189828981).

Subtracting from 144414540 its reverse (45414441), we obtain a palindrome (99000099).

It can be divided in two parts, 14441 and 4540, that added together give a palindrome (18981).

The spelling of 144414540 in words is "one hundred forty-four million, four hundred fourteen thousand, five hundred forty".