452809 has 6 divisors (see below), whose sum is σ = 526794. Its totient is φ = 388080.

The previous prime is 452807. The next prime is 452813. The reversal of 452809 is 908254.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 451584 + 1225 = 672^2 + 35^2 .

It is not a de Polignac number, because 452809 - 2¹ = 452807 is a prime.

It is a super-3 number, since 3×452809³ = 278526425441133387, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (452807) 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, 4572 + ... + 4669.

It is an arithmetic number, because the mean of its divisors is an integer number (87799).

2⁴⁵²⁸⁰⁹ is an apocalyptic number.

452809 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

452809 is a deficient number, since it is larger than the sum of its proper divisors (73985).

452809 is an equidigital number, since it uses as much as digits as its factorization.

452809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9255 (or 9248 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 452809 is about 672.9108410481. The cubic root of 452809 is about 76.7900617385.

The spelling of 452809 in words is "four hundred fifty-two thousand, eight hundred nine".