331946 has 8 divisors (see below), whose sum is σ = 500580. Its totient is φ = 165088.

The previous prime is 331943. The next prime is 331957. The reversal of 331946 is 649133.

It can be written as a sum of positive squares in 2 ways, for example, as 235225 + 96721 = 485^2 + 311^2 .

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

It is a super-2 number, since 2×331946² = 220376293832, which contains 22 as substring.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 331946.

It is not an unprimeable number, because it can be changed into a prime (331943) 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, 230 + ... + 846.

2³³¹⁹⁴⁶ is an apocalyptic number.

331946 is a deficient number, since it is larger than the sum of its proper divisors (168634).

331946 is a wasteful number, since it uses less digits than its factorization.

331946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888.

The product of its digits is 1944, while the sum is 26.

The square root of 331946 is about 576.1475505459. The cubic root of 331946 is about 69.2398013540.

The spelling of 331946 in words is "three hundred thirty-one thousand, nine hundred forty-six".