242812 has 6 divisors (see below), whose sum is σ = 424928. Its totient is φ = 121404.
The previous prime is 242807. The next prime is 242813. The reversal of 242812 is 218242.
It is a self number, because there is not a number n which added to its sum of digits gives 242812.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (242813) 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 as a sum of consecutive naturals, namely, 30348 + ... + 30355.
2242812 is an apocalyptic number.
It is an amenable number.
242812 is a deficient number, since it is larger than the sum of its proper divisors (182116).
242812 is a wasteful number, since it uses less digits than its factorization.
242812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60707 (or 60705 counting only the distinct ones).
The product of its digits is 256, while the sum is 19.
The square root of 242812 is about 492.7595762641. The cubic root of 242812 is about 62.3864177101.
Subtracting from 242812 its product of digits (256), we obtain a triangular number (242556 = T696).
The spelling of 242812 in words is "two hundred forty-two thousand, eight hundred twelve".
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