43838941 has 2 divisors, whose sum is σ = 43838942. Its totient is φ = 43838940.

The previous prime is 43838911. The next prime is 43838983. The reversal of 43838941 is 14983834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43164900 + 674041 = 6570^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 43838941 - 2⁷ = 43838813 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 43838894 and 43838903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43838911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21919470 + 21919471.

It is an arithmetic number, because the mean of its divisors is an integer number (21919471).

Almost surely, 2^43838941 is an apocalyptic number.

It is an amenable number.

43838941 is a deficient number, since it is larger than the sum of its proper divisors (1).

43838941 is an equidigital number, since it uses as much as digits as its factorization.

43838941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 43838941 is about 6621.0981717537. The cubic root of 43838941 is about 352.6035535676.

The spelling of 43838941 in words is "forty-three million, eight hundred thirty-eight thousand, nine hundred forty-one".