143424 has 56 divisors (see below), whose sum is σ = 426720. Its totient is φ = 47232.

The previous prime is 143419. The next prime is 143443. The reversal of 143424 is 424341.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 143397 and 143406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143424.

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, 1687 + ... + 1769.

It is an arithmetic number, because the mean of its divisors is an integer number (7620).

2¹⁴³⁴²⁴ 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 143424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213360).

143424 is an abundant number, since it is smaller than the sum of its proper divisors (283296).

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

143424 is an equidigital number, since it uses as much as digits as its factorization.

143424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 88 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 143424 is about 378.7136121134. The cubic root of 143424 is about 52.3448480575.

Adding to 143424 its reverse (424341), we get a palindrome (567765).

The spelling of 143424 in words is "one hundred forty-three thousand, four hundred twenty-four", and thus it is an iban number.