452909 has 4 divisors (see below), whose sum is σ = 459360. Its totient is φ = 446460.

The previous prime is 452873. The next prime is 452923. The reversal of 452909 is 909254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 909254 = 2 ⋅454627.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452909 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452989) 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 in 3 ways as a sum of consecutive naturals, for example, 3119 + ... + 3260.

It is an arithmetic number, because the mean of its divisors is an integer number (114840).

2⁴⁵²⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

452909 is a deficient number, since it is larger than the sum of its proper divisors (6451).

452909 is an equidigital number, since it uses as much as digits as its factorization.

452909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 452909 is about 672.9851409950. The cubic root of 452909 is about 76.7957141886.

The spelling of 452909 in words is "four hundred fifty-two thousand, nine hundred nine".