307306 has 8 divisors (see below), whose sum is σ = 485280. Its totient is φ = 145548.

The previous prime is 307301. The next prime is 307337. The reversal of 307306 is 603703.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (307301) 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, 4006 + ... + 4081.

It is an arithmetic number, because the mean of its divisors is an integer number (60660).

2³⁰⁷³⁰⁶ is an apocalyptic number.

307306 is a deficient number, since it is larger than the sum of its proper divisors (177974).

307306 is a wasteful number, since it uses less digits than its factorization.

307306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8108.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 307306 is about 554.3518738130. The cubic root of 307306 is about 67.4823730836.

The spelling of 307306 in words is "three hundred seven thousand, three hundred six".