4450409 has 2 divisors, whose sum is σ = 4450410. Its totient is φ = 4450408.

The previous prime is 4450399. The next prime is 4450441. The reversal of 4450409 is 9040544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3988009 + 462400 = 1997^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 4450409 - 2¹⁶ = 4384873 is a prime.

It is a super-2 number, since 2×4450409² = 39612280534562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4450489) 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, 2225204 + 2225205.

It is an arithmetic number, because the mean of its divisors is an integer number (2225205).

Almost surely, 2^4450409 is an apocalyptic number.

It is an amenable number.

4450409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4450409 is an equidigital number, since it uses as much as digits as its factorization.

4450409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4450409 is about 2109.5992510427. The cubic root of 4450409 is about 164.4876547062.

The spelling of 4450409 in words is "four million, four hundred fifty thousand, four hundred nine".