331088 has 10 divisors (see below), whose sum is σ = 641514. Its totient is φ = 165536.

The previous prime is 331081. The next prime is 331099. The reversal of 331088 is 880133.

It can be written as a sum of positive squares in only one way, i.e., 322624 + 8464 = 568^2 + 92^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331081) by changing a digit.

331088 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 as a sum of consecutive naturals, namely, 10331 + ... + 10362.

2³³¹⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

331088 is a deficient number, since it is larger than the sum of its proper divisors (310426).

331088 is a wasteful number, since it uses less digits than its factorization.

331088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20701 (or 20695 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 331088 is about 575.4024678432. The cubic root of 331088 is about 69.1800938433.

The spelling of 331088 in words is "three hundred thirty-one thousand, eighty-eight".