144113440 has 48 divisors (see below), whose sum is σ = 342696312. Its totient is φ = 57268224.

The previous prime is 144113429. The next prime is 144113477. The reversal of 144113440 is 44311441.

144113440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 53406864 + 90706576 = 7308^2 + 9524^2 .

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, 22252 + ... + 27988.

Almost surely, 2^144113440 is an apocalyptic number.

144113440 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 144113440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171348156).

144113440 is an abundant number, since it is smaller than the sum of its proper divisors (198582872).

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

144113440 is a wasteful number, since it uses less digits than its factorization.

144113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909 (or 5901 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 144113440 is about 12004.7257361424. The cubic root of 144113440 is about 524.2858801705.

Adding to 144113440 its reverse (44311441), we get a palindrome (188424881).

The spelling of 144113440 in words is "one hundred forty-four million, one hundred thirteen thousand, four hundred forty".