242427 has 4 divisors (see below), whose sum is σ = 323240. Its totient is φ = 161616.

The previous prime is 242419. The next prime is 242441. The reversal of 242427 is 724242.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 242427 - 2³ = 242419 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40402 + ... + 40407.

It is an arithmetic number, because the mean of its divisors is an integer number (80810).

2²⁴²⁴²⁷ is an apocalyptic number.

242427 is a deficient number, since it is larger than the sum of its proper divisors (80813).

242427 is an equidigital number, since it uses as much as digits as its factorization.

242427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80812.

The product of its digits is 896, while the sum is 21.

The square root of 242427 is about 492.3687642408. The cubic root of 242427 is about 62.3534271980.

Adding to 242427 its reverse (724242), we get a palindrome (966669).

The spelling of 242427 in words is "two hundred forty-two thousand, four hundred twenty-seven", and thus it is an iban number.