242140440432 has 80 divisors (see below), whose sum is σ = 690617547648. Its totient is φ = 72491831040.

The previous prime is 242140440431. The next prime is 242140440461. The reversal of 242140440432 is 234044041242.

It is a self number, because there is not a number n which added to its sum of digits gives 242140440432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242140440431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2718823 + ... + 2806470.

Almost surely, 2^242140440432 is an apocalyptic number.

242140440432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

242140440432 is an abundant number, since it is smaller than the sum of its proper divisors (448477107216).

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

242140440432 is a wasteful number, since it uses less digits than its factorization.

242140440432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525398 (or 5525392 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 242140440432 its reverse (234044041242), we get a palindrome (476184481674).

The spelling of 242140440432 in words is "two hundred forty-two billion, one hundred forty million, four hundred forty thousand, four hundred thirty-two".