242442013 has 6 divisors (see below), whose sum is σ = 266485982. Its totient is φ = 220401720.

The previous prime is 242441989. The next prime is 242442029. The reversal of 242442013 is 310244242.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 152324964 + 90117049 = 12342^2 + 9493^2 .

It is a de Polignac number, because none of the positive numbers 2^k-242442013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242442043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1001706 + ... + 1001947.

Almost surely, 2^242442013 is an apocalyptic number.

It is an amenable number.

242442013 is a deficient number, since it is larger than the sum of its proper divisors (24043969).

242442013 is a wasteful number, since it uses less digits than its factorization.

242442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003675 (or 2003664 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 242442013 is about 15570.5495407195. The cubic root of 242442013 is about 623.5471431079.

Adding to 242442013 its reverse (310244242), we get a palindrome (552686255).

The spelling of 242442013 in words is "two hundred forty-two million, four hundred forty-two thousand, thirteen".