242969 has 4 divisors (see below), whose sum is σ = 244260. Its totient is φ = 241680.

The previous prime is 242927. The next prime is 242971. The reversal of 242969 is 969242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969242 = 2 ⋅484621.

It can be written as a sum of positive squares in 2 ways, for example, as 198025 + 44944 = 445^2 + 212^2 .

It is a cyclic number.

It is not a de Polignac number, because 242969 - 2⁸ = 242713 is a prime.

It is a super-2 number, since 2×242969² = 118067869922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242989) 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, 302 + ... + 759.

It is an arithmetic number, because the mean of its divisors is an integer number (61065).

2²⁴²⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

242969 is a deficient number, since it is larger than the sum of its proper divisors (1291).

242969 is a wasteful number, since it uses less digits than its factorization.

242969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290.

The product of its digits is 7776, while the sum is 32.

The square root of 242969 is about 492.9188574198. The cubic root of 242969 is about 62.3998609738.

The spelling of 242969 in words is "two hundred forty-two thousand, nine hundred sixty-nine".