438342 has 16 divisors (see below), whose sum is σ = 897600. Its totient is φ = 142632.

The previous prime is 438341. The next prime is 438377. The reversal of 438342 is 243834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438341) 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, 592 + ... + 1107.

It is an arithmetic number, because the mean of its divisors is an integer number (56100).

2⁴³⁸³⁴² is an apocalyptic number.

438342 is an abundant number, since it is smaller than the sum of its proper divisors (459258).

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

438342 is a wasteful number, since it uses less digits than its factorization.

438342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747.

The product of its digits is 2304, while the sum is 24.

The square root of 438342 is about 662.0740139894. The cubic root of 438342 is about 75.9633941905.

It can be divided in two parts, 438 and 342, that added together give a triangular number (780 = T₃₉).

The spelling of 438342 in words is "four hundred thirty-eight thousand, three hundred forty-two".