242440021144 has 16 divisors (see below), whose sum is σ = 454758595200. Its totient is φ = 121171062432.

The previous prime is 242440021129. The next prime is 242440021273. The reversal of 242440021144 is 441120044242.

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 3 ways as a sum of consecutive naturals, for example, 6097464 + ... + 6137095.

It is an arithmetic number, because the mean of its divisors is an integer number (28422412200).

Almost surely, 2^242440021144 is an apocalyptic number.

It is an amenable number.

242440021144 is a deficient number, since it is larger than the sum of its proper divisors (212318574056).

242440021144 is a wasteful number, since it uses less digits than its factorization.

242440021144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12237042 (or 12237038 counting only the distinct ones).

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

Adding to 242440021144 its reverse (441120044242), we get a palindrome (683560065386).

The spelling of 242440021144 in words is "two hundred forty-two billion, four hundred forty million, twenty-one thousand, one hundred forty-four".