454609809 has 12 divisors (see below), whose sum is σ = 667789200. Its totient is φ = 297936024.

The previous prime is 454609783. The next prime is 454609847. The reversal of 454609809 is 908906454.

It is a happy number.

It is not a de Polignac number, because 454609809 - 2⁵ = 454609777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454609849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427539 + ... + 428600.

It is an arithmetic number, because the mean of its divisors is an integer number (55649100).

Almost surely, 2^454609809 is an apocalyptic number.

It is an amenable number.

454609809 is a deficient number, since it is larger than the sum of its proper divisors (213179391).

454609809 is a wasteful number, since it uses less digits than its factorization.

454609809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856204 (or 856201 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 454609809 is about 21321.5808278842. The cubic root of 454609809 is about 768.9172441205.

The spelling of 454609809 in words is "four hundred fifty-four million, six hundred nine thousand, eight hundred nine".