242516 has 12 divisors (see below), whose sum is σ = 446880. Its totient is φ = 114840.

The previous prime is 242509. The next prime is 242519. The reversal of 242516 is 615242.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242519) by changing a digit.

242516 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (37240).

2²⁴²⁵¹⁶ is an apocalyptic number.

It is an amenable number.

242516 is a deficient number, since it is larger than the sum of its proper divisors (204364).

242516 is a wasteful number, since it uses less digits than its factorization.

242516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214 (or 3212 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 242516 is about 492.4591353605. The cubic root of 242516 is about 62.3610566783.

Adding to 242516 its reverse (615242), we get a palindrome (857758).

The spelling of 242516 in words is "two hundred forty-two thousand, five hundred sixteen".