240871 has 4 divisors (see below), whose sum is σ = 244000. Its totient is φ = 237744.

The previous prime is 240869. The next prime is 240881. The reversal of 240871 is 178042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178042 = 2 ⋅89021.

It is a cyclic number.

It is not a de Polignac number, because 240871 - 2¹ = 240869 is a prime.

It is a Duffinian number.

240871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1446 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (61000).

2²⁴⁰⁸⁷¹ is an apocalyptic number.

240871 is a deficient number, since it is larger than the sum of its proper divisors (3129).

240871 is an equidigital number, since it uses as much as digits as its factorization.

240871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 240871 is about 490.7861041228. The cubic root of 240871 is about 62.2197371220.

It can be divided in two parts, 240 and 871, that added together give a palindrome (1111).

The spelling of 240871 in words is "two hundred forty thousand, eight hundred seventy-one".