306344 has 16 divisors (see below), whose sum is σ = 580500. Its totient is φ = 151552.

The previous prime is 306331. The next prime is 306347. The reversal of 306344 is 443603.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 302500 + 3844 = 550^2 + 62^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306344.

It is not an unprimeable number, because it can be changed into a prime (306347) by changing a digit.

306344 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, 1064 + ... + 1320.

2³⁰⁶³⁴⁴ is an apocalyptic number.

It is an amenable number.

306344 is a deficient number, since it is larger than the sum of its proper divisors (274156).

306344 is a wasteful number, since it uses less digits than its factorization.

306344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 306344 is about 553.4835137563. The cubic root of 306344 is about 67.4118831904.

Adding to 306344 its reverse (443603), we get a palindrome (749947).

The spelling of 306344 in words is "three hundred six thousand, three hundred forty-four".