242946140921 has 16 divisors (see below), whose sum is σ = 266417424000. Its totient is φ = 219706185600.

The previous prime is 242946140909. The next prime is 242946140923. The reversal of 242946140921 is 129041649242.

It is not a de Polignac number, because 242946140921 - 2¹⁰ = 242946139897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242946140923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16473611 + ... + 16488351.

It is an arithmetic number, because the mean of its divisors is an integer number (16651089000).

Almost surely, 2^242946140921 is an apocalyptic number.

It is an amenable number.

242946140921 is a deficient number, since it is larger than the sum of its proper divisors (23471283079).

242946140921 is a wasteful number, since it uses less digits than its factorization.

242946140921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22480.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 242946140921 in words is "two hundred forty-two billion, nine hundred forty-six million, one hundred forty thousand, nine hundred twenty-one".