242443013 has 4 divisors (see below), whose sum is σ = 242479500. Its totient is φ = 242406528.

The previous prime is 242442997. The next prime is 242443039. The reversal of 242443013 is 310344242.

242443013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 77757124 + 164685889 = 8818^2 + 12833^2 .

It is a cyclic number.

It is not a de Polignac number, because 242443013 - 2⁴ = 242442997 is a prime.

It is a super-2 number, since 2×242443013² = 117557229105036338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242443013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242443063) 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, 5138 + ... + 22611.

It is an arithmetic number, because the mean of its divisors is an integer number (60619875).

Almost surely, 2^242443013 is an apocalyptic number.

It is an amenable number.

242443013 is a deficient number, since it is larger than the sum of its proper divisors (36487).

242443013 is an equidigital number, since it uses as much as digits as its factorization.

242443013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36486.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 242443013 is about 15570.5816525909. The cubic root of 242443013 is about 623.5480004212.

Adding to 242443013 its reverse (310344242), we get a palindrome (552787255).

The spelling of 242443013 in words is "two hundred forty-two million, four hundred forty-three thousand, thirteen".