234809809 has 8 divisors (see below), whose sum is σ = 266181440. Its totient is φ = 205339536.

The previous prime is 234809777. The next prime is 234809833. The reversal of 234809809 is 908908432.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 234809809 - 2⁵ = 234809777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234809879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475077 + ... + 475570.

It is an arithmetic number, because the mean of its divisors is an integer number (33272680).

Almost surely, 2^234809809 is an apocalyptic number.

It is an amenable number.

234809809 is a deficient number, since it is larger than the sum of its proper divisors (31371631).

234809809 is a wasteful number, since it uses less digits than its factorization.

234809809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950679.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 234809809 is about 15323.5051146923. The cubic root of 234809809 is about 616.9340563654.

The spelling of 234809809 in words is "two hundred thirty-four million, eight hundred nine thousand, eight hundred nine".