242420013 has 32 divisors (see below), whose sum is σ = 394936320. Its totient is φ = 145741680.

The previous prime is 242420011. The next prime is 242420027. The reversal of 242420013 is 310024242.

242420013 is a `hidden beast` number, since 242 + 420 + 0 + 1 + 3 = 666.

242420013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242420013 - 2¹ = 242420011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242420011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34506 + ... + 40932.

It is an arithmetic number, because the mean of its divisors is an integer number (12341760).

Almost surely, 2^242420013 is an apocalyptic number.

It is an amenable number.

242420013 is a deficient number, since it is larger than the sum of its proper divisors (152516307).

242420013 is a wasteful number, since it uses less digits than its factorization.

242420013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6574 (or 6568 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 242420013 is about 15569.8430627929. The cubic root of 242420013 is about 623.5282816188.

Adding to 242420013 its reverse (310024242), we get a palindrome (552444255).

The spelling of 242420013 in words is "two hundred forty-two million, four hundred twenty thousand, thirteen".