242811 has 24 divisors (see below), whose sum is σ = 398160. Its totient is φ = 145728.

The previous prime is 242807. The next prime is 242813. The reversal of 242811 is 118242.

242811 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 242811 - 2² = 242807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10546 + ... + 10568.

It is an arithmetic number, because the mean of its divisors is an integer number (16590).

2²⁴²⁸¹¹ is an apocalyptic number.

242811 is a deficient number, since it is larger than the sum of its proper divisors (155349).

242811 is a wasteful number, since it uses less digits than its factorization.

242811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 43 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 242811 is about 492.7585615695. The cubic root of 242811 is about 62.3863320656.

The spelling of 242811 in words is "two hundred forty-two thousand, eight hundred eleven".