454319809 has 4 divisors (see below), whose sum is σ = 454419504. Its totient is φ = 454220116.

The previous prime is 454319779. The next prime is 454319819. The reversal of 454319809 is 908913454.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 454319809 - 2²⁵ = 420765377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454319819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42667 + ... + 52240.

It is an arithmetic number, because the mean of its divisors is an integer number (113604876).

Almost surely, 2^454319809 is an apocalyptic number.

It is an amenable number.

454319809 is a deficient number, since it is larger than the sum of its proper divisors (99695).

454319809 is an equidigital number, since it uses as much as digits as its factorization.

454319809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99694.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 454319809 is about 21314.7791215391. The cubic root of 454319809 is about 768.7537094231.

The spelling of 454319809 in words is "four hundred fifty-four million, three hundred nineteen thousand, eight hundred nine".