271740 has 48 divisors (see below), whose sum is σ = 870912. Its totient is φ = 62016.

The previous prime is 271729. The next prime is 271753. The reversal of 271740 is 47172.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

271740 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 15 ways as a sum of consecutive naturals, for example, 97 + ... + 743.

It is an arithmetic number, because the mean of its divisors is an integer number (18144).

2²⁷¹⁷⁴⁰ is an apocalyptic number.

271740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 271740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435456).

271740 is an abundant number, since it is smaller than the sum of its proper divisors (599172).

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

271740 is a wasteful number, since it uses less digits than its factorization.

271740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 271740 is about 521.2868691997. The cubic root of 271740 is about 64.7715848591.

The spelling of 271740 in words is "two hundred seventy-one thousand, seven hundred forty", and thus it is an iban number.