43389041 has 2 divisors, whose sum is σ = 43389042. Its totient is φ = 43389040.

The previous prime is 43389019. The next prime is 43389043. The reversal of 43389041 is 14098334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34810000 + 8579041 = 5900^2 + 2929^2 .

It is a cyclic number.

It is not a de Polignac number, because 43389041 - 2⁶ = 43388977 is a prime.

Together with 43389043, 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 = 43388989 and 43389007.

It is not a weakly prime, because it can be changed into another prime (43389043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21694520 + 21694521.

It is an arithmetic number, because the mean of its divisors is an integer number (21694521).

Almost surely, 2^43389041 is an apocalyptic number.

It is an amenable number.

43389041 is a deficient number, since it is larger than the sum of its proper divisors (1).

43389041 is an equidigital number, since it uses as much as digits as its factorization.

43389041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 43389041 is about 6587.0358280489. The cubic root of 43389041 is about 351.3931979463.

The spelling of 43389041 in words is "forty-three million, three hundred eighty-nine thousand, forty-one".