43038869 has 2 divisors, whose sum is σ = 43038870. Its totient is φ = 43038868.

The previous prime is 43038847. The next prime is 43038893. The reversal of 43038869 is 96883034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36602500 + 6436369 = 6050^2 + 2537^2 .

It is a cyclic number.

It is not a de Polignac number, because 43038869 - 2¹² = 43034773 is a prime.

It is a super-2 number, since 2×43038869² = 3704688489598322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43038839) 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, 21519434 + 21519435.

It is an arithmetic number, because the mean of its divisors is an integer number (21519435).

Almost surely, 2^43038869 is an apocalyptic number.

It is an amenable number.

43038869 is a deficient number, since it is larger than the sum of its proper divisors (1).

43038869 is an equidigital number, since it uses as much as digits as its factorization.

43038869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 43038869 is about 6560.4015883176. The cubic root of 43038869 is about 350.4453351622.

The spelling of 43038869 in words is "forty-three million, thirty-eight thousand, eight hundred sixty-nine".