331344399 has 16 divisors (see below), whose sum is σ = 482872320. Its totient is φ = 201194880.

The previous prime is 331344389. The next prime is 331344421. The reversal of 331344399 is 993443133.

It is not a de Polignac number, because 331344399 - 2⁵ = 331344367 is a prime.

It is a super-2 number, since 2×331344399² = 219578221497342402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331344359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103209 + ... + 106370.

It is an arithmetic number, because the mean of its divisors is an integer number (30179520).

Almost surely, 2^331344399 is an apocalyptic number.

331344399 is a deficient number, since it is larger than the sum of its proper divisors (151527921).

331344399 is a wasteful number, since it uses less digits than its factorization.

331344399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209630.

The product of its digits is 104976, while the sum is 39.

The square root of 331344399 is about 18202.8678784416. The cubic root of 331344399 is about 691.9794723382.

The spelling of 331344399 in words is "three hundred thirty-one million, three hundred forty-four thousand, three hundred ninety-nine".