339534809 has 4 divisors (see below), whose sum is σ = 354297216. Its totient is φ = 324772404.

The previous prime is 339534803. The next prime is 339534857. The reversal of 339534809 is 908435933.

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: 908435933 = 29 ⋅31325377.

It is a cyclic number.

It is not a de Polignac number, because 339534809 - 2²⁰ = 338486233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 339534809.

It is not an unprimeable number, because it can be changed into a prime (339534803) 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, 7381169 + ... + 7381214.

It is an arithmetic number, because the mean of its divisors is an integer number (88574304).

Almost surely, 2^339534809 is an apocalyptic number.

It is an amenable number.

339534809 is a deficient number, since it is larger than the sum of its proper divisors (14762407).

339534809 is a wasteful number, since it uses less digits than its factorization.

339534809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14762406.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 339534809 is about 18426.4703348200. The cubic root of 339534809 is about 697.6347441622.

The spelling of 339534809 in words is "three hundred thirty-nine million, five hundred thirty-four thousand, eight hundred nine".