43426841 has 2 divisors, whose sum is σ = 43426842. Its totient is φ = 43426840.

The previous prime is 43426813. The next prime is 43426843. The reversal of 43426841 is 14862434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39000025 + 4426816 = 6245^2 + 2104^2 .

It is a cyclic number.

It is not a de Polignac number, because 43426841 - 2⁶ = 43426777 is a prime.

Together with 43426843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 43426798 and 43426807.

It is not a weakly prime, because it can be changed into another prime (43426843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21713420 + 21713421.

It is an arithmetic number, because the mean of its divisors is an integer number (21713421).

Almost surely, 2^43426841 is an apocalyptic number.

It is an amenable number.

43426841 is a deficient number, since it is larger than the sum of its proper divisors (1).

43426841 is an equidigital number, since it uses as much as digits as its factorization.

43426841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 32.

The square root of 43426841 is about 6589.9044757872. The cubic root of 43426841 is about 351.4952114748.

The spelling of 43426841 in words is "forty-three million, four hundred twenty-six thousand, eight hundred forty-one".