40330404442421 has 4 divisors (see below), whose sum is σ = 40335648294144. Its totient is φ = 40325160590700.

The previous prime is 40330404442403. The next prime is 40330404442423. The reversal of 40330404442421 is 12424440403304.

40330404442421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40330404442421 - 2¹⁸ = 40330404180277 is a prime.

It is a super-3 number, since 3×40330404442421³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40330404442423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2621914325 + ... + 2621929706.

It is an arithmetic number, because the mean of its divisors is an integer number (10083912073536).

Almost surely, 2^{40330404442421} is an apocalyptic number.

It is an amenable number.

40330404442421 is a deficient number, since it is larger than the sum of its proper divisors (5243851723).

40330404442421 is an equidigital number, since it uses as much as digits as its factorization.

40330404442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243851722.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 40330404442421 its reverse (12424440403304), we get a palindrome (52754844845725).

The spelling of 40330404442421 in words is "forty trillion, three hundred thirty billion, four hundred four million, four hundred forty-two thousand, four hundred twenty-one".