306650 has 12 divisors (see below), whose sum is σ = 570462. Its totient is φ = 122640.

The previous prime is 306643. The next prime is 306653. The reversal of 306650 is 56603.

It can be written as a sum of positive squares in 3 ways, for example, as 290521 + 16129 = 539^2 + 127^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306650.

It is not an unprimeable number, because it can be changed into a prime (306653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3017 + ... + 3116.

2³⁰⁶⁶⁵⁰ is an apocalyptic number.

306650 is a deficient number, since it is larger than the sum of its proper divisors (263812).

306650 is a wasteful number, since it uses less digits than its factorization.

306650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6145 (or 6140 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 306650 is about 553.7598757584. The cubic root of 306650 is about 67.4343211161.

Subtracting from 306650 its reverse (56603), we obtain a cube (250047 = 63³).

The spelling of 306650 in words is "three hundred six thousand, six hundred fifty".