144378 has 24 divisors (see below), whose sum is σ = 337428. Its totient is φ = 44352.

The previous prime is 144349. The next prime is 144379. The reversal of 144378 is 873441.

It can be written as a sum of positive squares in 2 ways, for example, as 110889 + 33489 = 333^2 + 183^2 .

It is not an unprimeable number, because it can be changed into a prime (144379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75 + ... + 542.

2¹⁴⁴³⁷⁸ is an apocalyptic number.

144378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

144378 is an abundant number, since it is smaller than the sum of its proper divisors (193050).

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

144378 is a wasteful number, since it uses less digits than its factorization.

144378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 635 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 144378 is about 379.9710515289. The cubic root of 144378 is about 52.4606507869.

It can be divided in two parts, 1443 and 78, that added together give a square (1521 = 39²).

The spelling of 144378 in words is "one hundred forty-four thousand, three hundred seventy-eight".