242869 has 4 divisors (see below), whose sum is σ = 264960. Its totient is φ = 220780.

The previous prime is 242867. The next prime is 242873. The reversal of 242869 is 968242.

242869 = 6⁴ + 7⁴ + ... + 16⁴.

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 242869 - 2¹ = 242867 is a prime.

It is a super-2 number, since 2×242869² = 117970702322, which contains 22 as substring.

It is a Duffinian number.

242869 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 242869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11029 + ... + 11050.

It is an arithmetic number, because the mean of its divisors is an integer number (66240).

2²⁴²⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

242869 is a deficient number, since it is larger than the sum of its proper divisors (22091).

242869 is a wasteful number, since it uses less digits than its factorization.

242869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22090.

The product of its digits is 6912, while the sum is 31.

The square root of 242869 is about 492.8174104067. The cubic root of 242869 is about 62.3912990553.

It can be divided in two parts, 242 and 869, that added together give a palindrome (1111).

The spelling of 242869 in words is "two hundred forty-two thousand, eight hundred sixty-nine".