4425409 has 2 divisors, whose sum is σ = 4425410. Its totient is φ = 4425408.

The previous prime is 4425403. The next prime is 4425427. The reversal of 4425409 is 9045244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3610000 + 815409 = 1900^2 + 903^2 .

It is a cyclic number.

It is not a de Polignac number, because 4425409 - 2³ = 4425401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4425401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2212704 + 2212705.

It is an arithmetic number, because the mean of its divisors is an integer number (2212705).

Almost surely, 2^4425409 is an apocalyptic number.

It is an amenable number.

4425409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4425409 is an equidigital number, since it uses as much as digits as its factorization.

4425409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 4425409 is about 2103.6656103098. The cubic root of 4425409 is about 164.1790751641.

The spelling of 4425409 in words is "four million, four hundred twenty-five thousand, four hundred nine".