40243143320242 has 8 divisors (see below), whose sum is σ = 60365091779100. Its totient is φ = 20121446060544.

The previous prime is 40243143320239. The next prime is 40243143320273. The reversal of 40243143320242 is 24202334134204.

It can be written as a sum of positive squares in 2 ways, for example, as 40216030075321 + 27113244921 = 6341611^2 + 164661^2 .

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 = 40243143320198 and 40243143320207.

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, 62398767 + ... + 63040402.

Almost surely, 2^{40243143320242} is an apocalyptic number.

40243143320242 is a deficient number, since it is larger than the sum of its proper divisors (20121948458858).

40243143320242 is a wasteful number, since it uses less digits than its factorization.

40243143320242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125599580.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 40243143320242 its reverse (24202334134204), we get a palindrome (64445477454446).

The spelling of 40243143320242 in words is "forty trillion, two hundred forty-three billion, one hundred forty-three million, three hundred twenty thousand, two hundred forty-two".