306434 has 16 divisors (see below), whose sum is σ = 488376. Its totient is φ = 144000.

The previous prime is 306431. The next prime is 306437. The reversal of 306434 is 434603.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (306431) and next prime (306437).

It can be written as a sum of positive squares in 4 ways, for example, as 299209 + 7225 = 547^2 + 85^2 .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306434.

It is not an unprimeable number, because it can be changed into a prime (306431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984 + ... + 3084.

2³⁰⁶⁴³⁴ is an apocalyptic number.

306434 is a deficient number, since it is larger than the sum of its proper divisors (181942).

306434 is a wasteful number, since it uses less digits than its factorization.

306434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 306434 is about 553.5648110204. The cubic root of 306434 is about 67.4184841307.

The spelling of 306434 in words is "three hundred six thousand, four hundred thirty-four".