242746 has 12 divisors (see below), whose sum is σ = 423738. Its totient is φ = 103992.

The previous prime is 242731. The next prime is 242747. The reversal of 242746 is 647242.

It can be written as a sum of positive squares in only one way, i.e., 207025 + 35721 = 455^2 + 189^2 .

It is a super-3 number, since 3×242746³ = 42911876033330808, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242746.

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 5 ways as a sum of consecutive naturals, for example, 1141 + ... + 1336.

2²⁴²⁷⁴⁶ is an apocalyptic number.

242746 is a deficient number, since it is larger than the sum of its proper divisors (180992).

242746 is a wasteful number, since it uses less digits than its factorization.

242746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2486 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 242746 is about 492.6926019335. The cubic root of 242746 is about 62.3807646716.

Adding to 242746 its reverse (647242), we get a palindrome (889988).

Subtracting 242746 from its reverse (647242), we obtain a square (404496 = 636²).

The spelling of 242746 in words is "two hundred forty-two thousand, seven hundred forty-six".