144447768 has 48 divisors (see below), whose sum is σ = 394318080. Its totient is φ = 47767104.

The previous prime is 144447763. The next prime is 144447803. The reversal of 144447768 is 867744441.

It is a happy number.

144447768 is a `hidden beast` number, since 144 + 447 + 7 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144447763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1246 + ... + 17042.

It is an arithmetic number, because the mean of its divisors is an integer number (8214960).

Almost surely, 2^144447768 is an apocalyptic number.

144447768 is a gapful number since it is divisible by the number (18) 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 144447768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197159040).

144447768 is an abundant number, since it is smaller than the sum of its proper divisors (249870312).

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

144447768 is a wasteful number, since it uses less digits than its factorization.

144447768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15936 (or 15929 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 144447768 is about 12018.6425190202. The cubic root of 144447768 is about 524.6909963942.

The spelling of 144447768 in words is "one hundred forty-four million, four hundred forty-seven thousand, seven hundred sixty-eight".