334425409 has 2 divisors, whose sum is σ = 334425410. Its totient is φ = 334425408.

The previous prime is 334425391. The next prime is 334425433. The reversal of 334425409 is 904524433.

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., 297459009 + 36966400 = 17247^2 + 6080^2 .

It is a cyclic number.

It is not a de Polignac number, because 334425409 - 2⁷ = 334425281 is a prime.

It is a super-2 number, since 2×334425409² = 223680708369634562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (334425439) 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 as a sum of consecutive naturals, namely, 167212704 + 167212705.

It is an arithmetic number, because the mean of its divisors is an integer number (167212705).

Almost surely, 2^334425409 is an apocalyptic number.

It is an amenable number.

334425409 is a deficient number, since it is larger than the sum of its proper divisors (1).

334425409 is an equidigital number, since it uses as much as digits as its factorization.

334425409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 334425409 is about 18287.3018512847. The cubic root of 334425409 is about 694.1176519054.

The spelling of 334425409 in words is "three hundred thirty-four million, four hundred twenty-five thousand, four hundred nine".