242422013 has 4 divisors (see below), whose sum is σ = 246040320. Its totient is φ = 238803708.

The previous prime is 242421979. The next prime is 242422021. The reversal of 242422013 is 310224242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242422013 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 (242422073) 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, 1809053 + ... + 1809186.

It is an arithmetic number, because the mean of its divisors is an integer number (61510080).

Almost surely, 2^242422013 is an apocalyptic number.

It is an amenable number.

242422013 is a deficient number, since it is larger than the sum of its proper divisors (3618307).

242422013 is an equidigital number, since it uses as much as digits as its factorization.

242422013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618306.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 242422013 is about 15569.9072893836. The cubic root of 242422013 is about 623.5299963468.

Adding to 242422013 its reverse (310224242), we get a palindrome (552646255).

The spelling of 242422013 in words is "two hundred forty-two million, four hundred twenty-two thousand, thirteen".