306378 has 12 divisors (see below), whose sum is σ = 663858. Its totient is φ = 102120.

The previous prime is 306377. The next prime is 306389. The reversal of 306378 is 873603.

It is a happy number.

306378 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in only one way, i.e., 178929 + 127449 = 423^2 + 357^2 .

It is not an unprimeable number, because it can be changed into a prime (306377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8493 + ... + 8528.

2³⁰⁶³⁷⁸ is an apocalyptic number.

306378 is an abundant number, since it is smaller than the sum of its proper divisors (357480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306378 is a wasteful number, since it uses less digits than its factorization.

306378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17029 (or 17026 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 306378 is about 553.5142274594. The cubic root of 306378 is about 67.4143770309.

The spelling of 306378 in words is "three hundred six thousand, three hundred seventy-eight".