242643283 has 4 divisors (see below), whose sum is σ = 243433960. Its totient is φ = 241852608.

The previous prime is 242643239. The next prime is 242643301. The reversal of 242643283 is 382346242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242643283 - 2¹³ = 242635091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242643683) 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, 394878 + ... + 395491.

It is an arithmetic number, because the mean of its divisors is an integer number (60858490).

Almost surely, 2^242643283 is an apocalyptic number.

242643283 is a deficient number, since it is larger than the sum of its proper divisors (790677).

242643283 is an equidigital number, since it uses as much as digits as its factorization.

242643283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790676.

The product of its digits is 55296, while the sum is 34.

The square root of 242643283 is about 15577.0113629027. The cubic root of 242643283 is about 623.7196470652.

The spelling of 242643283 in words is "two hundred forty-two million, six hundred forty-three thousand, two hundred eighty-three".