40044300242021 has 8 divisors (see below), whose sum is σ = 40051818326520. Its totient is φ = 40036782503872.

The previous prime is 40044300241937. The next prime is 40044300242057. The reversal of 40044300242021 is 12024200344004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10718977780225 + 29325322461796 = 3273985^2 + 5415286^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40044300242021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044300242081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379395371 + ... + 379500903.

It is an arithmetic number, because the mean of its divisors is an integer number (5006477290815).

Almost surely, 2^{40044300242021} is an apocalyptic number.

It is an amenable number.

40044300242021 is a deficient number, since it is larger than the sum of its proper divisors (7518084499).

40044300242021 is a wasteful number, since it uses less digits than its factorization.

40044300242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173175.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40044300242021 its reverse (12024200344004), we get a palindrome (52068500586025).

The spelling of 40044300242021 in words is "forty trillion, forty-four billion, three hundred million, two hundred forty-two thousand, twenty-one".