40024440242242 has 4 divisors (see below), whose sum is σ = 60036660363366. Its totient is φ = 20012220121120.

The previous prime is 40024440242231. The next prime is 40024440242291. The reversal of 40024440242242 is 24224204442004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36601277910201 + 3423162332041 = 6049899^2 + 1850179^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40024440242198 and 40024440242207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006110060559 + ... + 10006110060562.

Almost surely, 2^{40024440242242} is an apocalyptic number.

40024440242242 is a deficient number, since it is larger than the sum of its proper divisors (20012220121124).

40024440242242 is a wasteful number, since it uses less digits than its factorization.

40024440242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20012220121123.

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 40024440242242 its reverse (24224204442004), we get a palindrome (64248644684246).

The spelling of 40024440242242 in words is "forty trillion, twenty-four billion, four hundred forty million, two hundred forty-two thousand, two hundred forty-two".