305444 has 12 divisors (see below), whose sum is σ = 562800. Its totient is φ = 144648.

The previous prime is 305441. The next prime is 305449. The reversal of 305444 is 444503.

It is a happy number.

It is a plaindrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 305444.

It is not an unprimeable number, because it can be changed into a prime (305441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934 + ... + 2085.

It is an arithmetic number, because the mean of its divisors is an integer number (46900).

2³⁰⁵⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

305444 is a deficient number, since it is larger than the sum of its proper divisors (257356).

305444 is a wasteful number, since it uses less digits than its factorization.

305444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042 (or 4040 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 305444 is about 552.6698833843. The cubic root of 305444 is about 67.3458025682.

Adding to 305444 its reverse (444503), we get a palindrome (749947).

The spelling of 305444 in words is "three hundred five thousand, four hundred forty-four".