242140421011424 has 96 divisors (see below), whose sum is σ = 516702236964480. Its totient is φ = 111034968625152.

The previous prime is 242140421011417. The next prime is 242140421011457. The reversal of 242140421011424 is 424110124041242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726037412 + ... + 726370844.

It is an arithmetic number, because the mean of its divisors is an integer number (5382314968380).

Almost surely, 2^{242140421011424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242140421011424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258351118482240).

242140421011424 is an abundant number, since it is smaller than the sum of its proper divisors (274561815953056).

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

242140421011424 is a wasteful number, since it uses less digits than its factorization.

242140421011424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344732 (or 344724 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 242140421011424 its reverse (424110124041242), we get a palindrome (666250545052666).

The spelling of 242140421011424 in words is "two hundred forty-two trillion, one hundred forty billion, four hundred twenty-one million, eleven thousand, four hundred twenty-four".