2440042143242 has 8 divisors (see below), whose sum is σ = 3992796234432. Its totient is φ = 1109110065100.

The previous prime is 2440042143233. The next prime is 2440042143257. The reversal of 2440042143242 is 2423412400442.

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

It is a junction number, because it is equal to n+sod(n) for n = 2440042143199 and 2440042143208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55455503234 + ... + 55455503277.

It is an arithmetic number, because the mean of its divisors is an integer number (499099529304).

Almost surely, 2^{2440042143242} is an apocalyptic number.

2440042143242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2440042143242 is a deficient number, since it is larger than the sum of its proper divisors (1552754091190).

2440042143242 is a wasteful number, since it uses less digits than its factorization.

2440042143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110911006524.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 2440042143242 its reverse (2423412400442), we get a palindrome (4863454543684).

The spelling of 2440042143242 in words is "two trillion, four hundred forty billion, forty-two million, one hundred forty-three thousand, two hundred forty-two".