438132 has 24 divisors (see below), whose sum is σ = 1058400. Its totient is φ = 140896.

The previous prime is 438131. The next prime is 438133. The reversal of 438132 is 231834.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (438131) and next prime (438133).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 438099 and 438108.

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, 282 + ... + 977.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2⁴³⁸¹³² is an apocalyptic number.

It is an amenable number.

438132 is an abundant number, since it is smaller than the sum of its proper divisors (620268).

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

438132 is a wasteful number, since it uses less digits than its factorization.

438132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295 (or 1293 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 438132 is about 661.9154024496. The cubic root of 438132 is about 75.9512614563.

Adding to 438132 its reverse (231834), we get a palindrome (669966).

The spelling of 438132 in words is "four hundred thirty-eight thousand, one hundred thirty-two".