306770 has 8 divisors (see below), whose sum is σ = 552204. Its totient is φ = 122704.

The previous prime is 306763. The next prime is 306781. The reversal of 306770 is 77603.

It can be written as a sum of positive squares in 2 ways, for example, as 305809 + 961 = 553^2 + 31^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306770.

It is an unprimeable number.

306770 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15329 + ... + 15348.

2³⁰⁶⁷⁷⁰ is an apocalyptic number.

306770 is a deficient number, since it is larger than the sum of its proper divisors (245434).

306770 is a wasteful number, since it uses less digits than its factorization.

306770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30684.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 306770 is about 553.8682153726. The cubic root of 306770 is about 67.4431162280.

The spelling of 306770 in words is "three hundred six thousand, seven hundred seventy".