334506409 has 2 divisors, whose sum is σ = 334506410. Its totient is φ = 334506408.

The previous prime is 334506407. The next prime is 334506437. The reversal of 334506409 is 904605433.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177555625 + 156950784 = 13325^2 + 12528^2 .

It is a cyclic number.

It is not a de Polignac number, because 334506409 - 2¹ = 334506407 is a prime.

It is a super-2 number, since 2×334506409² = 223789075324150562, which contains 22 as substring.

Together with 334506407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (334506401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167253204 + 167253205.

It is an arithmetic number, because the mean of its divisors is an integer number (167253205).

Almost surely, 2^334506409 is an apocalyptic number.

It is an amenable number.

334506409 is a deficient number, since it is larger than the sum of its proper divisors (1).

334506409 is an equidigital number, since it uses as much as digits as its factorization.

334506409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 334506409 is about 18289.5163686742. The cubic root of 334506409 is about 694.1736873119.

The spelling of 334506409 in words is "three hundred thirty-four million, five hundred six thousand, four hundred nine".