234438 has 16 divisors (see below), whose sum is σ = 480816. Its totient is φ = 76160.

The previous prime is 234431. The next prime is 234457. The reversal of 234438 is 834432.

It is a super-2 number, since 2×234438² = 109922351688, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 234438.

It is not an unprimeable number, because it can be changed into a prime (234431) by changing a digit.

234438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231 + ... + 722.

It is an arithmetic number, because the mean of its divisors is an integer number (30051).

2²³⁴⁴³⁸ is an apocalyptic number.

234438 is an abundant number, since it is smaller than the sum of its proper divisors (246378).

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

234438 is a wasteful number, since it uses less digits than its factorization.

234438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999.

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

The square root of 234438 is about 484.1879800243. The cubic root of 234438 is about 61.6608256784.

The spelling of 234438 in words is "two hundred thirty-four thousand, four hundred thirty-eight".