331444 has 24 divisors (see below), whose sum is σ = 620928. Its totient is φ = 154560.

The previous prime is 331423. The next prime is 331447. The reversal of 331444 is 444133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7029 + ... + 7075.

It is an arithmetic number, because the mean of its divisors is an integer number (25872).

2³³¹⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

331444 is a deficient number, since it is larger than the sum of its proper divisors (289484).

331444 is a wasteful number, since it uses less digits than its factorization.

331444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 133 counting only the distinct ones).

The product of its digits is 576, while the sum is 19.

The square root of 331444 is about 575.7117334222. The cubic root of 331444 is about 69.2048800951.

Adding to 331444 its reverse (444133), we get a palindrome (775577).

The spelling of 331444 in words is "three hundred thirty-one thousand, four hundred forty-four".