242140421044 has 24 divisors (see below), whose sum is σ = 446721666048. Its totient is φ = 114671850720.

The previous prime is 242140420999. The next prime is 242140421057. The reversal of 242140421044 is 440124041242.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20768059 + ... + 20779714.

It is an arithmetic number, because the mean of its divisors is an integer number (18613402752).

Almost surely, 2^242140421044 is an apocalyptic number.

It is an amenable number.

242140421044 is a deficient number, since it is larger than the sum of its proper divisors (204581245004).

242140421044 is a wasteful number, since it uses less digits than its factorization.

242140421044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41547855 (or 41547853 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 242140421044 its reverse (440124041242), we get a palindrome (682264462286).

The spelling of 242140421044 in words is "two hundred forty-two billion, one hundred forty million, four hundred twenty-one thousand, forty-four".