331089688 has 16 divisors (see below), whose sum is σ = 657310680. Its totient is φ = 155806848.

The previous prime is 331089683. The next prime is 331089721. The reversal of 331089688 is 886980133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331089683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217106 + ... + 1217377.

Almost surely, 2^331089688 is an apocalyptic number.

It is an amenable number.

331089688 is a deficient number, since it is larger than the sum of its proper divisors (326220992).

331089688 is a wasteful number, since it uses less digits than its factorization.

331089688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434506 (or 2434502 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 331089688 is about 18195.8700808727. The cubic root of 331089688 is about 691.8021141104.

The spelling of 331089688 in words is "three hundred thirty-one million, eighty-nine thousand, six hundred eighty-eight".