242421045018 has 8 divisors (see below), whose sum is σ = 484842090048. Its totient is φ = 80807015004.

The previous prime is 242421044963. The next prime is 242421045019. The reversal of 242421045018 is 810540124242.

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

242421045018 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 242421045018.

It is not an unprimeable number, because it can be changed into a prime (242421045019) 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, 20201753746 + ... + 20201753757.

It is an arithmetic number, because the mean of its divisors is an integer number (60605261256).

Almost surely, 2^242421045018 is an apocalyptic number.

242421045018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242421045018 is a wasteful number, since it uses less digits than its factorization.

242421045018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40403507508.

The product of its (nonzero) digits is 20480, while the sum is 33.

The spelling of 242421045018 in words is "two hundred forty-two billion, four hundred twenty-one million, forty-five thousand, eighteen".