242431 has 8 divisors (see below), whose sum is σ = 282240. Its totient is φ = 203928.

The previous prime is 242419. The next prime is 242441. The reversal of 242431 is 134242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242431 - 2⁵ = 242399 is a prime.

It is a super-2 number, since 2×242431² = 117545579522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120 + ... + 706.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

2²⁴²⁴³¹ is an apocalyptic number.

242431 is a deficient number, since it is larger than the sum of its proper divisors (39809).

242431 is an equidigital number, since it uses as much as digits as its factorization.

242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its digits is 192, while the sum is 16.

The square root of 242431 is about 492.3728262201. The cubic root of 242431 is about 62.3537701361.

Adding to 242431 its reverse (134242), we get a palindrome (376673).

The spelling of 242431 in words is "two hundred forty-two thousand, four hundred thirty-one".