4089429 has 12 divisors (see below), whose sum is σ = 6044896. Its totient is φ = 2662632.

The previous prime is 4089413. The next prime is 4089431. The reversal of 4089429 is 9249804.

It is a happy number.

It is not a de Polignac number, because 4089429 - 2⁴ = 4089413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4089393 and 4089402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4897 + ... + 5670.

Almost surely, 2^4089429 is an apocalyptic number.

It is an amenable number.

4089429 is a deficient number, since it is larger than the sum of its proper divisors (1955467).

4089429 is a wasteful number, since it uses less digits than its factorization.

4089429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10616 (or 10613 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4089429 is about 2022.2336660238. The cubic root of 4089429 is about 159.9143943102.

The spelling of 4089429 in words is "four million, eighty-nine thousand, four hundred twenty-nine".