40241245021 has 8 divisors (see below), whose sum is σ = 41226809400. Its totient is φ = 39255874560.

The previous prime is 40241245007. The next prime is 40241245043. The reversal of 40241245021 is 12054214204.

It can be written as a sum of positive squares in 4 ways, for example, as 5732609796 + 34508635225 = 75714^2 + 185765^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40241245021 - 2⁷ = 40241244893 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 (40241245061) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 428335 + ... + 513763.

It is an arithmetic number, because the mean of its divisors is an integer number (5153351175).

Almost surely, 2^40241245021 is an apocalyptic number.

40241245021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40241245021 is a deficient number, since it is larger than the sum of its proper divisors (985564379).

40241245021 is a wasteful number, since it uses less digits than its factorization.

40241245021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96959.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 40241245021 its reverse (12054214204), we get a palindrome (52295459225).

The spelling of 40241245021 in words is "forty billion, two hundred forty-one million, two hundred forty-five thousand, twenty-one".