40421444234407 has 2 divisors, whose sum is σ = 40421444234408. Its totient is φ = 40421444234406.

The previous prime is 40421444234389. The next prime is 40421444234461. The reversal of 40421444234407 is 70443244412404.

40421444234407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40421444234407 - 2⁷ = 40421444234279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40421444234497) 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 as a sum of consecutive naturals, namely, 20210722117203 + 20210722117204.

It is an arithmetic number, because the mean of its divisors is an integer number (20210722117204).

Almost surely, 2^{40421444234407} is an apocalyptic number.

40421444234407 is a deficient number, since it is larger than the sum of its proper divisors (1).

40421444234407 is an equidigital number, since it uses as much as digits as its factorization.

40421444234407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1376256, while the sum is 43.

The spelling of 40421444234407 in words is "forty trillion, four hundred twenty-one billion, four hundred forty-four million, two hundred thirty-four thousand, four hundred seven".