242020308647 has 8 divisors (see below), whose sum is σ = 261775412640. Its totient is φ = 222427798560.

The previous prime is 242020308571. The next prime is 242020308689. The reversal of 242020308647 is 746803020242.

242020308647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 242020308647 - 2¹⁰ = 242020307623 is a prime.

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 242020308647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242023308647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40645379 + ... + 40651332.

It is an arithmetic number, because the mean of its divisors is an integer number (32721926580).

Almost surely, 2^242020308647 is an apocalyptic number.

242020308647 is a deficient number, since it is larger than the sum of its proper divisors (19755103993).

242020308647 is a wasteful number, since it uses less digits than its factorization.

242020308647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81296953.

The product of its (nonzero) digits is 129024, while the sum is 38.

Adding to 242020308647 its reverse (746803020242), we get a palindrome (988823328889).

The spelling of 242020308647 in words is "two hundred forty-two billion, twenty million, three hundred eight thousand, six hundred forty-seven".