271438 has 4 divisors (see below), whose sum is σ = 407160. Its totient is φ = 135718.

The previous prime is 271429. The next prime is 271451. The reversal of 271438 is 834172.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

271438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67858 + ... + 67861.

It is an arithmetic number, because the mean of its divisors is an integer number (101790).

2²⁷¹⁴³⁸ is an apocalyptic number.

271438 is a deficient number, since it is larger than the sum of its proper divisors (135722).

271438 is a wasteful number, since it uses less digits than its factorization.

271438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135721.

The product of its digits is 1344, while the sum is 25.

The square root of 271438 is about 520.9971209134. The cubic root of 271438 is about 64.7475811920.

The spelling of 271438 in words is "two hundred seventy-one thousand, four hundred thirty-eight".