452806209 has 6 divisors (see below), whose sum is σ = 654053426. Its totient is φ = 301870800.

The previous prime is 452806201. The next prime is 452806219. The reversal of 452806209 is 902608254.

It is a happy number.

452806209 is a `hidden beast` number, since 4 + 5 + 28 + 0 + 620 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 303282225 + 149523984 = 17415^2 + 12228^2 .

It is not a de Polignac number, because 452806209 - 2³ = 452806201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (452806201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25155892 + ... + 25155909.

Almost surely, 2^452806209 is an apocalyptic number.

It is an amenable number.

452806209 is a deficient number, since it is larger than the sum of its proper divisors (201247217).

452806209 is a wasteful number, since it uses less digits than its factorization.

452806209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50311807 (or 50311804 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 452806209 is about 21279.2436190763. The cubic root of 452806209 is about 767.8990396663.

The spelling of 452806209 in words is "four hundred fifty-two million, eight hundred six thousand, two hundred nine".