438168 has 16 divisors (see below), whose sum is σ = 1095480. Its totient is φ = 146048.

The previous prime is 438143. The next prime is 438169. The reversal of 438168 is 861834.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438169) by changing a digit.

438168 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 9105 + ... + 9152.

2⁴³⁸¹⁶⁸ is an apocalyptic number.

It is an amenable number.

438168 is an abundant number, since it is smaller than the sum of its proper divisors (657312).

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

438168 is a wasteful number, since it uses less digits than its factorization.

438168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18266 (or 18262 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 438168 is about 661.9425956984. The cubic root of 438168 is about 75.9533416289.

It can be divided in two parts, 438 and 168, that added together give a palindrome (606).

The spelling of 438168 in words is "four hundred thirty-eight thousand, one hundred sixty-eight".