43404029 has 2 divisors, whose sum is σ = 43404030. Its totient is φ = 43404028.

The previous prime is 43404019. The next prime is 43404041. The reversal of 43404029 is 92040434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40615129 + 2788900 = 6373^2 + 1670^2 .

It is a cyclic number.

It is not a de Polignac number, because 43404029 - 2²⁴ = 26626813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43403989 and 43404007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43404019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21702014 + 21702015.

It is an arithmetic number, because the mean of its divisors is an integer number (21702015).

Almost surely, 2^43404029 is an apocalyptic number.

It is an amenable number.

43404029 is a deficient number, since it is larger than the sum of its proper divisors (1).

43404029 is an equidigital number, since it uses as much as digits as its factorization.

43404029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 43404029 is about 6588.1734190897. The cubic root of 43404029 is about 351.4336542060.

The spelling of 43404029 in words is "forty-three million, four hundred four thousand, twenty-nine".