334409 has 4 divisors (see below), whose sum is σ = 336516. Its totient is φ = 332304.

The previous prime is 334403. The next prime is 334421. The reversal of 334409 is 904433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 904433 = 67 ⋅13499.

It can be written as a sum of positive squares in 2 ways, for example, as 270400 + 64009 = 520^2 + 253^2 .

It is a cyclic number.

It is not a de Polignac number, because 334409 - 2⁴ = 334393 is a prime.

It is a super-2 number, since 2×334409² = 223658758562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (334403) 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, 794 + ... + 1139.

It is an arithmetic number, because the mean of its divisors is an integer number (84129).

2³³⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

334409 is a deficient number, since it is larger than the sum of its proper divisors (2107).

334409 is a wasteful number, since it uses less digits than its factorization.

334409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 334409 is about 578.2810735274. The cubic root of 334409 is about 69.4106299137.

The spelling of 334409 in words is "three hundred thirty-four thousand, four hundred nine".