438135 has 8 divisors (see below), whose sum is σ = 701040. Its totient is φ = 233664.

The previous prime is 438133. The next prime is 438143. The reversal of 438135 is 531834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 438135 - 2¹ = 438133 is a prime.

438135 is a lucky number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438131) 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, 14590 + ... + 14619.

It is an arithmetic number, because the mean of its divisors is an integer number (87630).

2⁴³⁸¹³⁵ is an apocalyptic number.

438135 is a deficient number, since it is larger than the sum of its proper divisors (262905).

438135 is a wasteful number, since it uses less digits than its factorization.

438135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29217.

The product of its digits is 1440, while the sum is 24.

The square root of 438135 is about 661.9176685963. The cubic root of 438135 is about 75.9514348083.

Adding to 438135 its reverse (531834), we get a palindrome (969969).

The spelling of 438135 in words is "four hundred thirty-eight thousand, one hundred thirty-five".