242040013 has 8 divisors (see below), whose sum is σ = 243453600. Its totient is φ = 240630768.

The previous prime is 242039969. The next prime is 242040023. The reversal of 242040013 is 310040242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242040013 - 2¹⁷ = 241908941 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 (242040023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237018 + ... + 238036.

It is an arithmetic number, because the mean of its divisors is an integer number (30431700).

Almost surely, 2^242040013 is an apocalyptic number.

It is an amenable number.

242040013 is a deficient number, since it is larger than the sum of its proper divisors (1413587).

242040013 is a wasteful number, since it uses less digits than its factorization.

242040013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 242040013 is about 15557.6351994768. The cubic root of 242040013 is about 623.2023120262.

Adding to 242040013 its reverse (310040242), we get a palindrome (552080255).

The spelling of 242040013 in words is "two hundred forty-two million, forty thousand, thirteen".