438255 has 12 divisors (see below), whose sum is σ = 759720. Its totient is φ = 233712.

The previous prime is 438253. The next prime is 438259. The reversal of 438255 is 552834.

It is not a de Polignac number, because 438255 - 2¹ = 438253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438253) 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, 4825 + ... + 4914.

It is an arithmetic number, because the mean of its divisors is an integer number (63310).

2⁴³⁸²⁵⁵ is an apocalyptic number.

438255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

438255 is a deficient number, since it is larger than the sum of its proper divisors (321465).

438255 is a wasteful number, since it uses less digits than its factorization.

438255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9750 (or 9747 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 438255 is about 662.0083081050. The cubic root of 438255 is about 75.9583682423.

The spelling of 438255 in words is "four hundred thirty-eight thousand, two hundred fifty-five".