42240400022442 has 8 divisors (see below), whose sum is σ = 84480800044896. Its totient is φ = 14080133340812.

The previous prime is 42240400022417. The next prime is 42240400022459. The reversal of 42240400022442 is 24422000404224.

It is a happy number.

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

42240400022442 is an admirable number.

It is a super-2 number, since 2×42240400022442² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3520033335198 + ... + 3520033335209.

It is an arithmetic number, because the mean of its divisors is an integer number (10560100005612).

Almost surely, 2^{42240400022442} is an apocalyptic number.

42240400022442 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.

42240400022442 is a wasteful number, since it uses less digits than its factorization.

42240400022442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040066670412.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 42240400022442 its reverse (24422000404224), we get a palindrome (66662400426666).

The spelling of 42240400022442 in words is "forty-two trillion, two hundred forty billion, four hundred million, twenty-two thousand, four hundred forty-two".