273438 has 24 divisors (see below), whose sum is σ = 646776. Its totient is φ = 82800.

The previous prime is 273433. The next prime is 273457. The reversal of 273438 is 834372.

273438 is nontrivially palindromic in base 5.

It is a super-3 number, since 3×273438³ = 61333515930791016, which contains 333 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 273438.

It is not an unprimeable number, because it can be changed into a prime (273433) by changing a digit.

273438 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 11 ways as a sum of consecutive naturals, for example, 493 + ... + 888.

It is an arithmetic number, because the mean of its divisors is an integer number (26949).

2²⁷³⁴³⁸ is an apocalyptic number.

273438 is an abundant number, since it is smaller than the sum of its proper divisors (373338).

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

273438 is a wasteful number, since it uses less digits than its factorization.

273438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1397 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 273438 is about 522.9129946750. The cubic root of 273438 is about 64.9062158350.

It can be divided in two parts, 2734 and 38, that added together give a palindrome (2772).

The spelling of 273438 in words is "two hundred seventy-three thousand, four hundred thirty-eight".