334931809 has 4 divisors (see below), whose sum is σ = 338967216. Its totient is φ = 330896404.

The previous prime is 334931801. The next prime is 334931833. The reversal of 334931809 is 908139433.

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: 908139433 = 37 ⋅24544309.

It is a cyclic number.

It is not a de Polignac number, because 334931809 - 2³ = 334931801 is a prime.

It is a super-2 number, since 2×334931809² = 224358633360024962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (334931801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017579 + ... + 2017744.

It is an arithmetic number, because the mean of its divisors is an integer number (84741804).

Almost surely, 2^334931809 is an apocalyptic number.

It is an amenable number.

334931809 is a deficient number, since it is larger than the sum of its proper divisors (4035407).

334931809 is an equidigital number, since it uses as much as digits as its factorization.

334931809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035406.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 334931809 is about 18301.1422867536. The cubic root of 334931809 is about 694.4678285563.

The spelling of 334931809 in words is "three hundred thirty-four million, nine hundred thirty-one thousand, eight hundred nine".