331298 has 18 divisors (see below), whose sum is σ = 561393. Its totient is φ = 146520.

The previous prime is 331283. The next prime is 331301. The reversal of 331298 is 892133.

It can be written as a sum of positive squares in 2 ways, for example, as 267289 + 64009 = 517^2 + 253^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=407.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

331298 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 8 ways as a sum of consecutive naturals, for example, 8936 + ... + 8972.

2³³¹²⁹⁸ is an apocalyptic number.

331298 is a deficient number, since it is larger than the sum of its proper divisors (230095).

331298 is a wasteful number, since it uses less digits than its factorization.

331298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 50 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 331298 is about 575.5849198858. The cubic root of 331298 is about 69.1947170948.

It can be divided in two parts, 33 and 1298, that added together give a palindrome (1331).

The spelling of 331298 in words is "three hundred thirty-one thousand, two hundred ninety-eight".