144442688 has 56 divisors (see below), whose sum is σ = 311334912. Its totient is φ = 66092544.

The previous prime is 144442681. The next prime is 144442699. The reversal of 144442688 is 886244441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144442681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104981 + ... + 106347.

It is an arithmetic number, because the mean of its divisors is an integer number (5559552).

Almost surely, 2^144442688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144442688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155667456).

144442688 is an abundant number, since it is smaller than the sum of its proper divisors (166892224).

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

144442688 is a wasteful number, since it uses less digits than its factorization.

144442688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519 (or 1509 counting only the distinct ones).

The product of its digits is 196608, while the sum is 41.

The square root of 144442688 is about 12018.4311788186. The cubic root of 144442688 is about 524.6848454707.

The spelling of 144442688 in words is "one hundred forty-four million, four hundred forty-two thousand, six hundred eighty-eight".