306430 has 8 divisors (see below), whose sum is σ = 551592. Its totient is φ = 122568.

The previous prime is 306421. The next prime is 306431. The reversal of 306430 is 34603.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306431) 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, 15312 + ... + 15331.

It is an arithmetic number, because the mean of its divisors is an integer number (68949).

2³⁰⁶⁴³⁰ is an apocalyptic number.

306430 is a deficient number, since it is larger than the sum of its proper divisors (245162).

306430 is a wasteful number, since it uses less digits than its factorization.

306430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30650.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 306430 is about 553.5611980621. The cubic root of 306430 is about 67.4181907831.

The spelling of 306430 in words is "three hundred six thousand, four hundred thirty".