4500409 has 2 divisors, whose sum is σ = 4500410. Its totient is φ = 4500408.

The previous prime is 4500407. The next prime is 4500439. The reversal of 4500409 is 9040054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3717184 + 783225 = 1928^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 4500409 - 2¹ = 4500407 is a prime.

Together with 4500407, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4500409.

It is not a weakly prime, because it can be changed into another prime (4500401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2250204 + 2250205.

It is an arithmetic number, because the mean of its divisors is an integer number (2250205).

Almost surely, 2^4500409 is an apocalyptic number.

It is an amenable number.

4500409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4500409 is an equidigital number, since it uses as much as digits as its factorization.

4500409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 4500409 is about 2121.4167435938. The cubic root of 4500409 is about 165.1013641015.

The spelling of 4500409 in words is "four million, five hundred thousand, four hundred nine".