242055 has 32 divisors (see below), whose sum is σ = 472320. Its totient is φ = 116640.
The previous prime is 242009. The next prime is 242057. The reversal of 242055 is 550242.
It is not a de Polignac number, because 242055 - 29 = 241543 is a prime.
It is a super-4 number, since 4×2420554 (a number of 23 digits) contains 4444 as substring.
242055 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (242057) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1404 + ... + 1566.
It is an arithmetic number, because the mean of its divisors is an integer number (14760).
2242055 is an apocalyptic number.
242055 is a deficient number, since it is larger than the sum of its proper divisors (230265).
242055 is a wasteful number, since it uses less digits than its factorization.
242055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 188 (or 182 counting only the distinct ones).
The product of its (nonzero) digits is 400, while the sum is 18.
The square root of 242055 is about 491.9908535735. The cubic root of 242055 is about 62.3215174556.
Adding to 242055 its reverse (550242), we get a palindrome (792297).
The spelling of 242055 in words is "two hundred forty-two thousand, fifty-five".
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