242741 has 4 divisors (see below), whose sum is σ = 246432. Its totient is φ = 239052.

The previous prime is 242731. The next prime is 242747. The reversal of 242741 is 147242.

242741 = 24² + 25² + ... + 90².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242741 - 2⁶ = 242677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242747) 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, 1745 + ... + 1878.

It is an arithmetic number, because the mean of its divisors is an integer number (61608).

2²⁴²⁷⁴¹ is an apocalyptic number.

It is an amenable number.

242741 is a deficient number, since it is larger than the sum of its proper divisors (3691).

242741 is an equidigital number, since it uses as much as digits as its factorization.

242741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690.

The product of its digits is 448, while the sum is 20.

The square root of 242741 is about 492.6875277496. The cubic root of 242741 is about 62.3803363694.

Adding to 242741 its reverse (147242), we get a palindrome (389983).

The spelling of 242741 in words is "two hundred forty-two thousand, seven hundred forty-one", and thus it is an iban number.